The pipe fittings produced by our company has smooth surface, high density, no white month, and high strength, which can be used to produce DIN19522/EN877, ISO6594,GB12772, ASTM-A888, CISPI301, and DS D4307standard products, the 2000edition of the DIN19522/EN877 is administered, which is the modified edition of the 1993 edition with some shortcoming. The 2000edition has the following characteristics: light weight, reasonable design in structure, beautiful externality, easy linkage and installation, and is extensively used in high building with high grade. The paint used in the coating part is environmentally sound, strength, corrosion-resistant, and totally meet the need of the EN877.