... line of more than 10 years 4.cheaper price Material plastic Working Temperature 0 to 60 degree centigradeWorking Pressure 0~1 ... of material available: such as copper, carbon steel, stainless steel, plastic ect.7)Surface Treatment: galvanized, anodized ,nickel-plated,ect. 8 ... )Engaged in this line since 1997. black plastic "V" Type china pneumatic component