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江蘇大口徑直縫焊管材質(zhì)有哪些？焊管哪里最便宜？

63.5*4.5-5-6-7-8-9-10-12-15-16	245*8-10-14-17-20-22-30-40
76*4-4.5-5-6-7-8-9-10-12-15	273*7-8-10-16-18-20-25-30-45-60
78*4-4.5-5-6-7-8-9-10-12-14	299*8-12-20-35-50
83*4.5-6-10-12-14-16-18-20	335*8-12-14-18-22-25-45-60
89*4.5-6-10-12-14-16-18-20	355*8-10-20-25-30-40-52
95*4.5-8-10-12-14-16-20	377*8-12-16-20-24-28
102*4.5-5-7-8-10-12-14-16-18-30	402*10-15-20-25-30-35-40
108*4.5-5-7-8-10-12-14-18-20-22	406*10-20-25-28-35-40
114*4.5-5-6-7-10-12-16-18-20	426*10-12-14-16-20-25-30-35-40
121*4.5-5-6-7-8-10-12-14-16-18-20	480*10-12-14-16-18-20-25-30-40-50
127*4.5-5-6-7-8-10-12-14-16-18-20	508-530*10-12-14-16-18-20-30-40
133*4-5-6-8-12-15-18-20-25-30	560*10-14-16-20-25-30-40-50-60
140*6-8-10-12-14-16-18-20-22-25	600*10-14-16-20-25-30
148**6-8-10-12-14-16-18-20-30	610-10-11-18-20-25-30-45-66
150*6-8-10-12-14-17-20-25-30	630*10-30-40-45-55-75
153*4.5-6-8-10-12-14-20-25-30	650*15-20-30-45-55-75
168*8-10-12-14-20-25-30	710*10-20-30-45-65-75
180*8-12-16-25-30-45	720*10-20-40-55-60-75-95-100
184*6-8-12-16-20-25-30-40-48	760*20-30-40-50-60-70
200*6-7-10-15-20-26-30-45	850*20-25-35-45-65
219*6-8-12-16-18-20-25-30-45-50-60	960*48 1020*50-60-80
232*10-20-30	1020-50-60-80-100