TOP GUIDELINES OF หัวเจียรพลาสติก

Large amounts of acrylonitrile cause a rubber with improved oil resistance. Compounds with low acrylonitrile content material have a far better very low temperature versatility and resilience.Ethylene Propylene Rubber (EPM) is actually a copolymer consisting of ethylene and propylene. The ethylene propylene polymer is chemically inert because it co