聊城市龍鋼鋼管有限公司可按ASME/ASTM/DIN/EN/BS標準材質承接生產OD16mm-OD610mm無縫/焊接鋼管： ASTM A213?T11 19.05*2.11*8m 19.5tons ASME SA335 -P11 73.1*9.52*8-10m 8.8tons ASME SA335 -P11 168.3*21.4*8-10m 5.5tons ASME SA335 -P12 323.9*12.7.*8-12m 16.8tons ASME SA335 -P12 406.4*21.4*6-8m 6.2tons ASTM A335 -P22 44.5*4.2*>8 m 55.5tons ASTM A335 -P22 73*9.52*>6 m 6.5tons ASTM A335 -P22 73*14.02*>10 m 17.2tons ASTM A335 -P22 88.9*14.02*>6 m 7.2tons ASTM A335 -P22 114*13.5*5-7 m 5.5tons ASTM A335 -P22 114.3*25.4*68m 5.1tons ASTM A335 -P22 219.*8.18*>8m 8.8tons ASTM A213 -T22 44.5*4.5*>8m 68.8tons ASTM A213 -T22 60.3*11.07*5-6m 10.0tons ASTM A213 -T22 50.8*2.7*>6m 4.2tons ASTM A213 -T22 57.0*5.08*>6m 6.2tons ASTM A213 -T23 44.5*6.35*>10m 4.4tons ASTM A213 -T23 50.8*4.55*>10m 4.2tons ASTM A213 -T23 50.8*7.14*