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流量开关

流量开关

流量开关主要是在水、气、油等介质管路中在线或者插入式安装监控水系统中水流量的大小。在水流量高于或者低于某一个设定点时候触发输出报警信号传递给机组,系统获取信号后即可作出相应的指示动作。避免或减少主机“干烧”。1用途流量开关就是根据流量来指令系统的开关的。给流量开关设定上限或者下限,当流量达到此次限定值时,流量开关发出信号或报警,系统将运行或停止。一般要求流量的系统会采用流量开关。根据系统的不同,以及流量开关型号等因素的不同,使用的地方也不同,要根据具体情况而定。2分类挡板式别名

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流体:

用于气体,液体

所用技术:

机械

应用:

石油化工,化工

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上海祥树欧茂机电设备有限公司
1、我们在德国,美国都有分公司。可以为您提供提供100%原装正品!
2、不易寻找品牌、小金额,我们同样为您采购!
3、只要是欧盟,美国的产品,我们可以为您询价并采购!
4、随时欢迎您的来电询价!","Price":"0.00","Picture":"2/20200426/637292172062813831604.png","PictureDomain":"img65","MarketPrice":"0","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1565","IndexShow":"1","CompanyLink":"www.shxs-wxd.com","CompanyName":"上海祥树欧茂机电设备有限公司","MaxOrder":"1","StandUrl":"/st126105","PgID":"84","CityID":"3","City":"上海市","Year":"1","UserID":"145911","ShowPrice":"99.00","AttType":"0","AttState":"3","AttAddType":"0","UpdateTime":"2020/8/11 17:52:45","IsOnlinePay":"0","ClassID":"5995","BrandPicDomin":"","BrandPicName":"","BrandProperty":"无","PBrandID":"354","HitNumber":"70","CompanyTypeID":"1","LinkMan":"陈健","TelPhone":"021-23505235","Tag":"油泵,PARKER","ClassName":"活塞流量开关"},{"rn":"5","Part":"0","ID":"13073667","CompanyID":"116661","Type":"LLF900001 LBF900003","Name":"venture美国必测粉体助流气垫Bin-Flo","Address":"","Descrip":"venture美国必测粉体助流气垫Bin-Flo
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探头类型:非接触
过程温度:-20℃…80℃
过程压力:-0.1…1.0Mpa
输出方式:4~20mA
过程连接:G11/2A螺纹安装(标准)
典型应用:固体粉料/颗粒测量典型应用:
1、管道
2、溜槽
3、风力输送机
4、振动槽
5、皮带输送机","Price":"0.00","Picture":"2/20200722/637310250202764131399.jpg","PictureDomain":"img75","MarketPrice":"0","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1238","IndexShow":"1","CompanyLink":"www.bjxirunsi.com","CompanyName":"北京西润斯仪器仪表有限公司","MaxOrder":"1","StandUrl":"/st128722","PgID":"84","CityID":"1","City":"北京市","Year":"1","UserID":"148528","ShowPrice":"100.00","AttType":"0","AttState":"3","AttAddType":"0","UpdateTime":"2020/7/22 14:32:50","IsOnlinePay":"0","ClassID":"6996","BrandPicDomin":"","BrandPicName":"","BrandProperty":"其他品牌","PBrandID":"1339","HitNumber":"130","CompanyTypeID":"1","LinkMan":"王女士","TelPhone":"010-51663717","Tag":"微波固体流量开关,微波固体流量开关,微波固体流量开关,微波固体流量开关,微波固体流量开关","ClassName":"电子式流量开关"},{"rn":"10","Part":"0","ID":"12511204","CompanyID":"114455","Type":"MX-LL-116-06","Name":"机械式流量开关","Address":"","Descrip":"在工业自动化飞速发展的当下,流量监测已经是非常成熟的一项技术,目前由于流量计的高昂成本使很多小型自动化领域难以有效地监控流量的大小,机械式流量开关MX-LL-116-06系列流量开关是一种及其方便,性价比极高的简易流量监测仪器,输出定点的开关量信号从而起到控制流量的大小。","Price":"500","Picture":"2/20200718/637306623601202363487.jpg","PictureDomain":"img75","MarketPrice":"500","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1655","IndexShow":"1","CompanyLink":"www.meixuck.com","CompanyName":"上海美续测控技术有限公司","MaxOrder":"1","StandUrl":"/st114455","PgID":"84","CityID":"3","City":"上海市","Year":"2","UserID":"134254","ShowPrice":"500.00","AttType":"0","AttState":"3","AttAddType":"0","UpdateTime":"2020/7/18 9:55:41","IsOnlinePay":"0","ClassID":"5997","BrandPicDomin":"","BrandPicName":"","BrandProperty":"无","PBrandID":"354","HitNumber":"1262","CompanyTypeID":"3","LinkMan":"关明洋","TelPhone":"021-67881626","Tag":"流量开关,流量开关型号,机械流量开关","ClassName":"靶式流量开关"},{"rn":"11","Part":"0","ID":"13038585","CompanyID":"107584","Type":"JFXFR-12","Name":"电子式流量开关厂","Address":"","Descrip":"电子式流量开关厂
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CM2K系列流量开关采用弹簧和波纹管支撑的摇动手柄技术进行工作。电器触点由微开关控制。
•正常直径25-200
•可调旋钮负责精确调节设定值","Price":"0","Picture":"2/20200715/637304263789701074330.jpg","PictureDomain":"img74","MarketPrice":"-1","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1472","IndexShow":"1","CompanyLink":"","CompanyName":"武汉海瑞特自动化工程有限公司","MaxOrder":"1","StandUrl":"/st96810","PgID":"82","CityID":"182","City":"武汉市","Year":"3","UserID":"116590","ShowPrice":"99.99","AttType":"0","AttState":"3","AttAddType":"0","UpdateTime":"2020/7/15 16:13:24","IsOnlinePay":"0","ClassID":"5993","BrandPicDomin":"","BrandPicName":"","BrandProperty":"Honsberg/豪斯派克","PBrandID":"79","HitNumber":"161","CompanyTypeID":"3","LinkMan":"张先生","TelPhone":"86-027-87630899","Tag":"CM2K-025HM流量开关,CM2K-025HM-SR开关,流量开关CM2K-025HM,开关CM2K-025HM-SR","ClassName":"水流量开关"},{"rn":"13","Part":"0","ID":"13026646","CompanyID":"53275","Type":"deltaflow DF25","Name":"德国SYSTEC流量计","Address":"德国","Descrip":"德国SYSTEC流量计
SYSTEC流量计,SYSTEC德尔塔巴流量计,SYSTEC热质流量计,SYSTEC控制器,SYSTEC料位计","Price":"1000","Picture":"2/20200710/637300043025439255610.jpg","PictureDomain":"img73","MarketPrice":"1000","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1520","IndexShow":"1","CompanyLink":"","CompanyName":"赫尔纳贸易(大连)有限公司","MaxOrder":"1","StandUrl":"/st53275","PgID":"82","CityID":"51","City":"大连市","Year":"7","UserID":"70981","ShowPrice":"0.00","AttType":"0","AttState":"3","AttAddType":"0","UpdateTime":"2020/7/10 18:58:59","IsOnlinePay":"0","ClassID":"5993","BrandPicDomin":"","BrandPicName":"","BrandProperty":"无","PBrandID":"354","HitNumber":"149","CompanyTypeID":"1","LinkMan":"王经理","TelPhone":"86-411-87187730","Tag":"流量开关,流量计,PKP流量视镜,PKP液位开关,pkp代理","ClassName":"水流量开关"},{"rn":"14","Part":"0","ID":"12969083","CompanyID":"14201","Type":"","Name":"靶式流量开关 SY-WK-01","Address":"","Descrip":"靶式流量开关SY-WK-01用于检测单向或双向流动的空气、油和水,介质内不应有缠绕性杂物","Price":"0.00","Picture":"2/20200610/637273867669757844382.png","PictureDomain":"img65","MarketPrice":"0","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1458","IndexShow":"1","CompanyLink":"www.ck-yb.com.cn","CompanyName":"上海诚恳自动化仪表有限公司","MaxOrder":"1","StandUrl":"/st14201","PgID":"84","CityID":"3","City":"上海市","Year":"1","UserID":"22994","ShowPrice":"0.00","AttType":"0","AttState":"3","AttAddType":"2","UpdateTime":"2020/6/10 11:53:35","IsOnlinePay":"0","ClassID":"5997","BrandPicDomin":"","BrandPicName":"","BrandProperty":"其他品牌","PBrandID":"1339","HitNumber":"194","CompanyTypeID":"3","LinkMan":"张先生","TelPhone":"021-58383539","Tag":"靶式,流量开关","ClassName":"靶式流量开关"},{"rn":"15","Part":"0","ID":"12958839","CompanyID":"113799","Type":"LP21","Name":"唐山冶金窑炉冷却水断流保护热式流量开关","Address":"","Descrip":"唐山冶金窑炉冷却水断流保护热式流量开关是基于热式原理,在封闭的探头内包含两个电阻,其中一个被加热作为探测电阻,另一个未被加热作为基准电阻,当有介质流动时,感热传感器所接收到的热量将随介质的流速变化而变化,感热传感器将这温差信号转化成电信号,在流速达到某设定点时,热式流量开关输出开关量信号。","Price":"1","Picture":"2/20200528/637262590677250208917.jpg","PictureDomain":"img65","MarketPrice":"1","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1398","IndexShow":"0","CompanyLink":"","CompanyName":"唐山鼎驰自动化设备有限公司","MaxOrder":"1","StandUrl":"/st113799","PgID":"82","CityID":"6","City":"唐山市","Year":"2","UserID":"133598","ShowPrice":"1.00","AttType":"0","AttState":"3","AttAddType":"0","UpdateTime":"2020/6/4 16:02:07","IsOnlinePay":"0","ClassID":"5998","BrandPicDomin":"","BrandPicName":"","BrandProperty":"无","PBrandID":"354","HitNumber":"189","CompanyTypeID":"5","LinkMan":"赵工","TelPhone":"15830516638","Tag":"电子式流量开关,流量控制开关,流量控制器,热式流量开关,热式流量控制器","ClassName":"热式流量开关"},{"rn":"16","Part":"0","ID":"8508120","CompanyID":"67481","Type":"SFM-200K","Name":"微波固体流量开关","Address":"德国","Descrip":"SFM-200K微波固体流量开关实时监测固态物料的质量流量。可提前发现粉料、碎屑、小球状、颗粒状物料在运输或给料过程中的流动问题。有助于避免由于管道堵塞导致的各种问题,物料损失或系统的其它技术问题。","Price":"0","Picture":"2/20150509/635667801356439753171.jpg","PictureDomain":"img67","MarketPrice":"-1","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1185","IndexShow":"0","CompanyLink":"www.bjxkss.com","CompanyName":"北京西克赛斯科技有限公司","MaxOrder":"1","StandUrl":"/st67481","PgID":"84","CityID":"1","City":"北京市","Year":"6","UserID":"86281","ShowPrice":"0.00","AttType":"0","AttState":"3","AttAddType":"0","UpdateTime":"2020/4/20 11:40:47","IsOnlinePay":"0","ClassID":"5990","BrandPicDomin":"","BrandPicName":"","BrandProperty":"无","PBrandID":"354","HitNumber":"3014","CompanyTypeID":"3","LinkMan":"尹经理","TelPhone":"400 690 2566","Tag":"RGI,固体物料连续检测,检测物料连续性,固体流量开关,德国原装进口","ClassName":"其他流量开关"},{"rn":"17","Part":"0","ID":"7565507","CompanyID":"55982","Type":"IF301-10-00","Name":"IF301-10-00,日本SMC流量开关","Address":"日本","Descrip":"IF301-10-00,日本SMC流量开关
注1)1.620升/分钟(0.1兆帕)与1毫帕的·s粘度(1厘泊)或更少
根据流体温度注2)工作压力范围下降。见所附图表。
注3)的zui大工作压力,并与流体温度变化的1.5倍。
注4)该系统准确度高,与PF2D30结合?","Price":"0","Picture":"2/20200411/637222009911541446157.jpg","PictureDomain":"img65","MarketPrice":"-1","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1466","IndexShow":"0","CompanyLink":"www.drb168.net","CompanyName":"上海乾拓贸易有限公司","MaxOrder":"1","StandUrl":"/st55982","PgID":"84","CityID":"3","City":"上海市","Year":"7","UserID":"73838","ShowPrice":"0.00","AttType":"0","AttState":"3","AttAddType":"1","UpdateTime":"2020/4/18 14:37:35","IsOnlinePay":"0","ClassID":"5994","BrandPicDomin":"","BrandPicName":"","BrandProperty":"其他品牌","PBrandID":"1339","HitNumber":"3371","CompanyTypeID":"1","LinkMan":"周彩云","TelPhone":"86-021-69000973","Tag":"日本SMC流量开关,IF301-10-00,SMC流量开关规格图样,SMC压力开关适用性广,SMC数字式压力开关","ClassName":"气体流量开关"},{"rn":"18","Part":"0","ID":"6030861","CompanyID":"37933","Type":"ETWB12防爆开关","Name":"ETWB12防爆开关","Address":"江苏","Descrip":"该行程开关为复合型结构。内装防爆元件,增安型铸铝合金外壳,采用专用防水结构,防水性能好,适于户外使用;","Price":"","Picture":"2/20120914/634832374070312500.jpg","PictureDomain":"img41","MarketPrice":"-1","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1258","IndexShow":"0","CompanyLink":"","CompanyName":"江苏沪仪自动化仪表有限公司","MaxOrder":"1","StandUrl":"/st37933","PgID":"82","CityID":"97","City":"泰州市","Year":"1","UserID":"54261","ShowPrice":"0.00","AttType":"0","AttState":"3","AttAddType":"0","UpdateTime":"2020/4/6 8:12:44","IsOnlinePay":"0","ClassID":"5996","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","HitNumber":"3581","CompanyTypeID":"3","LinkMan":"崔春红","TelPhone":"052383763090","Tag":"防爆开关","ClassName":"防爆流量开关"},{"rn":"19","Part":"0","ID":"12730341","CompanyID":"125002","Type":"","Name":"Gino 流量开关","Address":"","Descrip":"参数:

-容量:15(8)A;24…250VAC

-接触:单极转换接触

-安装:垂直,水平
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四线制仪表(FMU40/41/42/43/44):max.2Hz
实际值取决于设备类型和参数设定值。
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相关产品介绍:

FS5100系列流量开关旨在精确检测关键过程中气体流量的增加或减少。电子开关由钕磁铁触发,钕磁铁是坚固的磁铁合金。这种永磁体被封装在对大多数物质具有化学抗性的316不锈钢外壳中。该开关是现场可调的,紧凑的结构是高密度系统封装的理想选择。","Price":"0","Picture":"2/20200403/637215198074722962661.jpg","PictureDomain":"img67","MarketPrice":"-1","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"2922","IndexShow":"0","CompanyLink":"","CompanyName":"天津赛力斯自动化科技有限公司","MaxOrder":"2","StandUrl":"/st31889","PgID":"82","CityID":"2","City":"天津市","Year":"6","UserID":"39523","ShowPrice":"0.00","AttType":"0","AttState":"3","AttAddType":"0","UpdateTime":"2020/4/3 14:11:18","IsOnlinePay":"0","ClassID":"5990","BrandPicDomin":"","BrandPicName":"","BrandProperty":"其他品牌","PBrandID":"1339","HitNumber":"660","CompanyTypeID":"1","LinkMan":"高宇鹏","TelPhone":"86-022-27312816","Tag":"美国Autoflow,Autoflow流量开关","ClassName":"其他流量开关"},{"rn":"22","Part":"0","ID":"12635355","CompanyID":"107980","Type":"","Name":"流量开关","Address":"","Descrip":"流量开关
食品饮料行业,食品与饮料行业是多元复杂的。无论您为饮料行业、乳品厂、烘焙房、肉类或糖果行业设计及建设工厂,还是对其进行维护及实行自动化控制,久茂可以根据您的任务要求给您支持,并为此应用提供一个优化的解决方案。","Price":"0.00","Picture":"2/20200311/637195256876800334402.png","PictureDomain":"img71","MarketPrice":"0","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"4405","IndexShow":"1","CompanyLink":"www.seifert-china.com","CompanyName":"上海霄鹏自动化科技有限公司","MaxOrder":"4","StandUrl":"/st107980","PgID":"83","CityID":"3","City":"上海市","Year":"3","UserID":"127778","ShowPrice":"0.00","AttType":"0","AttState":"3","AttAddType":"0","UpdateTime":"2020/3/11 12:16:04","IsOnlinePay":"0","ClassID":"5990","BrandPicDomin":"","BrandPicName":"","BrandProperty":"无","PBrandID":"354","HitNumber":"789","CompanyTypeID":"2","LinkMan":"李红宾","TelPhone":"18221680270","Tag":"开关,开关 厂家,开关 价格","ClassName":"其他流量开关"},{"rn":"23","Part":"0","ID":"12613833","CompanyID":"49972","Type":"LP-18Y8C","Name":"费斯托接近开关,FESTO深圳","Address":"","Descrip":"费斯托接近开关,FESTO深圳
一般情况下,可以齐平安装也可以非齐平安装,但非齐平安装的不能齐平安装。这是因为,可以齐平安装的头部带有屏蔽,齐平安装时,其检测不到金属安装支架,而非齐平安装的接近开关不带屏蔽,当齐平安装时,其可以检测到金属安装。正因为如此,非齐平安装的FESTO接近开关的灵敏度比齐平安装的灵敏度要大些,在实际应用中可以根据实际需要选用。","Price":"0.00","Picture":"2/20200304/637189418566586952224.png","PictureDomain":"img70","MarketPrice":"0","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1338","IndexShow":"1","CompanyLink":"","CompanyName":"东莞市豪帝工业自动化设备有限公司","MaxOrder":"1","StandUrl":"/st49972","PgID":"82","CityID":"229","City":"东莞市","Year":"8","UserID":"67359","ShowPrice":"10.00","AttType":"1","AttState":"3","AttAddType":"1","UpdateTime":"2020/3/4 18:04:51","IsOnlinePay":"0","ClassID":"6996","BrandPicDomin":"","BrandPicName":"","BrandProperty":"其他品牌","PBrandID":"1339","HitNumber":"521","CompanyTypeID":"1","LinkMan":"田小姐","TelPhone":"0769-33319810","Tag":"接近开关,FESTO开关,费斯托接近开关","ClassName":"电子式流量开关"},{"rn":"24","Part":"0","ID":"12545320","CompanyID":"69480","Type":"UR3K-020","Name":"希而科秦小艳Honsberg​流量开关急速报价","Address":"","Descrip":"希而科秦小艳Honsberg​流量开关急速报价
产品简介:
流量开关可对管道中的液体流动情况进行实时监控,提供开关量输出,并采用6个LED实时显示流体流速状态,实现下列监控功能:
介质流动,降低/提高流速;
介质存在/不存在;
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KY27-YLK-1型液流继电器是测量大型变压器冷却器冷却系统管道内液体流动状态及液体温度的专用仪表,是电站、冶金等保龄企业不可缺少的重要设备,例如:为了防止大型变压器冷却器系统中管道内冷却油(水)流动的中断和流量不足而影响机组运行安全,需要一种能监测管
二、工作原理和结构
本仪表采用先进微电脑","Price":"0","Picture":"2/20170331/636265670311719514969.jpg","PictureDomain":"img65","MarketPrice":"-1","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1451","IndexShow":"0","CompanyLink":"www.18910282261.com","CompanyName":"北京中西远大科技有限公司","MaxOrder":"1","StandUrl":"/st17172","PgID":"84","CityID":"1","City":"北京市","Year":"12","UserID":"25786","ShowPrice":"0.00","AttType":"0","AttState":"3","AttAddType":"1","UpdateTime":"2019/12/31 9:00:21","IsOnlinePay":"0","ClassID":"5990","BrandPicDomin":"","BrandPicName":"","BrandProperty":"无","PBrandID":"354","HitNumber":"520","CompanyTypeID":"3","LinkMan":"李经理","TelPhone":"","Tag":"流量开关,KY27-YLK-1,M195910,M195910,M195910","ClassName":"其他流量开关"},{"rn":"26","Part":"0","ID":"5830888","CompanyID":"20558","Type":"FST1000","Name":"液体流量开关","Address":"","Descrip":"液体流量开关
?风速范围zui高可至10,000FPM(50.8米/秒)
?精度:2%(满量程)
?双传感器探头配置(固定和远程)
?热(电阻)线风速传感器
?可调报警设置点
?两个SPST触点关闭装置,配红色LED指示灯
?用于暖通空调的监测,排气/通风罩","Price":"0","Picture":"2/20120106/634614518885937500.jpg","PictureDomain":"img46","MarketPrice":"-1","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1423","IndexShow":"0","CompanyLink":"www.wh-temp.cn","CompanyName":"广州沃华仪器有限公司","MaxOrder":"1","StandUrl":"/st20558","PgID":"84","CityID":"213","City":"广州市","Year":"4","UserID":"28785","ShowPrice":"0.00","AttType":"0","AttState":"3","AttAddType":"0","UpdateTime":"2019/11/14 8:47:34","IsOnlinePay":"0","ClassID":"5994","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","HitNumber":"3534","CompanyTypeID":"1","LinkMan":"谢先生","TelPhone":"86-020-87777016","Tag":"空气流量开关,FST100","ClassName":"气体流量开关"},{"rn":"27","Part":"0","ID":"12346404","CompanyID":"49943","Type":"FCR08","Name":"NEXON热式流量开关 FCR08 毕尔途自动化","Address":"德国","Descrip":"NEXON热式流量开关FCR08毕尔途自动化
FCR系列热式流量开关采用热扩散原理。探头中有两个温度传感器一个用作基准传感器测量介质温度,另一个被加热后作为测量传感器,这两个传感器之间的温度差作为测量流速的依据,当介质流速增大时,温差值减小,反之增大。该温差值经过处理后转换成标准电信号输出并显示。","Price":"4500","Picture":"2/20191028/637078572168571379737.png","PictureDomain":"img70","MarketPrice":"4500","WholesalePrice":"-1","RetailPrice":"-1","PromotionalPrice":"-1","PsOrder":"1410","IndexShow":"0","CompanyLink":"","CompanyName":"苏州毕尔途自动化科技有限公司","MaxOrder":"1","StandUrl":"/st49943","PgID":"82","CityID":"90","City":"苏州市","Year":"2","UserID":"67328","ShowPrice":"5000.00","AttType":"0","AttState":"3","AttAddType":"1","UpdateTime":"2019/10/28 11:05:11","IsOnlinePay":"0","ClassID":"5998","BrandPicDomin":"","BrandPicName":"","BrandProperty":"无","PBrandID":"354","HitNumber":"1573","CompanyTypeID":"2","LinkMan":"尚先生","TelPhone":"0512-87819506-818","Tag":"FCR08,热式流量开关,流量开关,NEXON,NEXON流量开关","ClassName":"热式流量开关"},{"rn":"28","Part":"0","ID":"12220076","CompanyID":"115111","Type":"SS-12M0-1-4","Name":"SMC-12M-4N-S6替代SS-12M0-1-4现货","Address":"SS-12M0-1-4","Descrip":"SMC-12M-4N-S6替代SS-12M0-1-4现货韩国SLOK接头SMC-12M-4N-S6替代美国Parker派克接头SS-12M0-1-4现货Parker派克管接头、球阀、仪表阀、卡套接头现货
Parker派克管接头、球阀、仪表阀、卡套接头现货
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