... have lots of experience. Provide: pneumatic components, such as pneumatic hose fittings . Primary Competitive Advantages: 1)Passed ISO 9001:2000.2 ... 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 pressure regulation pneumatic hose fittings