Thermoplastics valves - Pressure test methods and requirements - Part 2: test conditions and basic requirements for PE, PP, PVC-U and PVDF valves.
热塑性塑料阀门。压力试验方法和要求。第2部分：聚乙烯、聚丙烯、未增塑聚氯乙烯和聚偏氯乙烯阀门试验条件和。
Made of PP, PVC, CPVC, PVDF, stainless steel, titanium, they are corrosion resisting and have reasonable structure, both increase yield and decrease workers' Labour intensity.
用PP,PVC,CPVC,PVDF，不锈钢，钛制作，耐腐蚀。结构合理，既可增加产量，又减轻工人劳动强度。
On the first magnetic switch material, using PVDF, PP material, the material benefits that can be resistant to acid and alkali sites;
首先关于磁性开关的材质，采用PVDF、PP材质，这种材质的好处就是可以耐强酸、强碱场所；
Plastic packing material include: polyethylene (PE), polypropylene (PP), reinforced polypropylene (RPP), polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC) and PVDF (PVDF), etc.
塑料填料材质包括：聚乙烯（PE）、聚丙烯（PP）、增强聚丙烯（RPP）、聚氯乙烯（PVC）、氯化聚氯乙烯（CPVC）及聚偏氟乙烯（PVDF）等。
Plastic packing material include: polyethylene (PE), polypropylene (PP), reinforced polypropylene (RPP), polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC) and PVDF (PVDF), etc.
塑料填料材质包括：聚乙烯（PE）、聚丙烯（PP）、增强聚丙烯（RPP）、聚氯乙烯（PVC）、氯化聚氯乙烯（CPVC）及聚偏氟乙烯（PVDF）等。
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