The regulations and methods for valve base seal test, valve seal test, valve strength test, long term valve test, fatigue test and operating torque test were summed up in this article.
汇总了塑料阀门产品要求的阀座密封试验、阀体密封试验、阀体强度试验、阀门长期试验、疲劳强度试验和操作扭矩的规定和方法。
The jade ring gold porch valve Limited company is situated at shore, the Chinese valve the East China Sea, the hot-water heat valve to purchase the base------Zhejiang jade ring;
玉环金廊阀门有限公司地处东海之滨、中国阀门之都、水暖阀门采购基地------浙江玉环；
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