... GALVANIZED PIPE 1.standard:GB-8183/8162/3087, BS1387, DIN10025 2.outer diameter:20~219mm ASTM A106 SEAMLESS GALVANIZED PIPE ... 1.galvanized steel pipe/steel pipe/galvanized pipe2.standard:GB-8183/8162/ ... , Q215, Q235, Q345(Chinese Standard, Other Material Can Also Be Provided)StandardBS,GB,ASTM, ASME, DINUsageUsed For Gas, Oil, Water Pipes, ...