... . 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. MATERIAL ... of production units.We have passed the standards of ASTM A500, JIS G 3466, DIN EN10210, GB/T178-2005, GB/T ...