Liaocheng City Development Zone Chi Kai Steel Co. annual operating various materials seamless steel pipe, spiral steel pipe, steel pipe, welded pipe, galvanized pipe and other products. Customized special wall thickness seamless, custom precision steel tubes, cold drawn shaped steel tubing 0635-8877058 18706357059 customized Song Gang manager. The following is a common seamless steel pipe specifications in Table 12 × 1 89 × 4.5-8-10-12-14-16-18-20 245 × 25-28-30-34-40 14 × 1.5-2.5-3 95 × 4.5- 6-8-10-12-14-16-20 273 × 7-9-12-15-18-20-25 16 × 1.5-2.5-4 102 × 4.5-5-6-7-8-10-12 -14-16-20 273 × 30-35-38-40-45-50 18 × 2.3-4-5 108 × 4.5-5-6-7-8-10-12-14-18-20-22 299 × 8-12-16-20-24-28 20 × 2.5-3-5 114 × 4.5-5-6-7-8-10-12-14-18-20 299 × 30-32-36-38- 40-45 24 × 2.5-3-4-5-6 121 × 4.5-5-6-7-8-10-12-14-16-20 325 × 8-12-14-18-38-42 25 × 2.5-3-4-5-6 127 × 4.5-5-6-7-8-10-12-14-16-20 325 × 28-32-34-38-42 28 × 3-3.5-4-5 -6 133 × 4.5-6-8-12-14-16-18-20-25-30 351 × 10-16-20-25-40 32 × 3.5-4-5-6-8 140 × 5-6 -7-8-9-10-12-14-16-20-22 355 × 6-18-20-25-30-40 / 52 34 × 4-5-6-8 146 × 4.5-6-8- 12-14-16-18-20-25-30 377 × 8-12-15-20-24-28 36 × 3.5-5-6-8 152 × 4.5-6-8-12-14-16-18 -20-25-30 377 × 30-37-40-45-50 38 × 4-5-6-7-8-9-10 159 × 4.5-6-10-12-14 402 × 10-15-20 -25-30-35 39 × 3.5-5-8-10 159 × 16-18-20-22-25-30 406 × 10-20-25-28-35-40 42 × 3.5-4-5-6 -7-8-9-10 168 × 8-10-12-14-20-25-30-35 426 × 10-12-14-16-20-25-30-35-40 45 × 3.5-4- 5-6-7-8-9 180 × 8-12-16-25-30 450 × 10-12-14-16-20-25-34-40-50 48 × 3.5-4-5-6-7 -8-9-10 180 × 32-34-38-40-45-50 480 × 10-12-14-16-18-20-25-30-40 51 × 3.5-4-5-6-7- 8-9-10 194 × 6-8-12-16-20-25-30-40-45-50 500 × 10-12-14-16-20-25-34-40-50 56 × 3.5-4 -5-6-7-8-9-10 203 × 6-7-10-15-20-25-30 510 × 10-12-14-16-20-25-34-40-50 57 × 3.5- 5-6-7-8-9-10-12 203 × 32-36-40-45-50 530 × 10-12-14-16-18-20-30-40 60 × 3.5-4.5-5-6 -7-8-9-12-14 219 × 6-8-12-16-18-20-25 560 × 10-14-16-20-25-30-40-50-60 63 × 3.5-4.5- 5-6-7-8-9-10-12-14 219 × 30-40-45-50-55 580 × 10-14-16-20-30-40-50-70 68 × 4-4.5-5 -6-7-8-9-10-12-14-16 219 × 55-58-60-65-70 600 × 10-14-18-25-20-30-50-60 70 × 4-4.5- 5-6-7-8-9-10-12-15-16 245 × 8-10-14-17-20-22 610 × 10-14-18-25-20-30-50-60 73 × 4 -4.5-5-6-7-8-9-10-12-15 245 × 25-28-30-34-40 620 × 14-20-30-35-45-50-60 76 × 4-4.5- 5-6-7-8-9-10-12-14 273 × 7-9-12-15-18-20-25 630 × 10-20-30-40-55-75