山东省聊城市亿元方盛钢管有限公司
电力、船舶用管、地质、石油裂化管、GB9948-95、DZ40-DZ50
28,32,36,38,42,45×4.5,6,8,10,12 各38 219,325,340,377,390×8,10,12,14,16-20
50,51,53.5,57,60,65×5,6,8,10,12,14-16 各31 299,325,340,377,390×8,10,12,14,16-20
68,70,73,76,83×5,6,8,12,14,16-18 各28 402,406,426,406,455,457×6,10,12,14,16,18-35
83,89,95,102,108×5,6,7,8,10,12,14-18 各28 465,480,508,540,515,645,565×12,14,16-45
114,127,140,152×5,6,7,8,10,12,14,16-26 各30 550,558,8,596.7,601.6,700×12,13,14,16,18-45
159,168,180,194,203×5,6,8,10,12,14-36 各46 720,750,820,850,860,960×18,20,21,22-95