The pipe fitting produced by our company has smooth surface,high density,o white mouth and high strength,which can beusedto produce DIN19522/EN877,ISO6594,GB12772,ASTM A 888,CISPI301 and KSD 4307 standard products.The 2000edition of the DIN19522/EN877 is administered,which is the modified edition of the 1993 edition with some shortcoming.The 2000 edition has the following characteristics:light weight,reasonable design in structure,beautiful externality, easy likage and instrallation, and is extensively used in the 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.