... 2. Advanced Roller Extrusion equipment line. 3.CE,ISO,ASTM A500,JIS ASTM A500 Galvanized Rectangular Steel Pipe 1. STANDARD:GB/T3094 ... -2000, GB/T6728-2002, ASTM A500, JIS G 3466, DIN EN 10210, GB/T178-20052 ... origination of production units.We have passed the standards of ASTM A500, JIS G 3466, DIN EN10210, GB/T178-2005, GB ...