... plated.5. Certification: ISO9001:2000.6. Application: Water pipes, gas pipes, shower hose, air conditioner, refrigerator, fire valve, ... made of brass & coppers, including: pipe fittings, compression fittings, flare fittings, brass union, elbow, tee, cross, nut, cap, plug ... applications, our products are mainly used in: Water pipes, gas pipes, shower hose, air conditioner, refrigerator, fire valve, ...