1. 外环氧树脂内IPN8710防腐钢管 outside epoxy resin inner IPN8710 anticorrosion steel pipe 2. 环氧白陶瓷防腐钢管 epoxy white ceramic anticorrosion steel pipe 3. 内衬塑防腐钢管 anticorrosion steel pipe lined with plastic(PE) 4. 环氧煤沥青防腐钢管 三布无油 Epoxy coal bitumen anticorrosion steel pipe (with three layers cloth and five layers oil) 5. 环氧煤沥青防腐钢管 两布三油 Epoxy coal bitumen anticorrosion steel pipe (with two layers cloth and three layers oil) 6. 外3PE内水泥砂浆防腐钢管 Outside 3PE cement mortar lined anticorrosion steel pipe 7. 保温管件产品系列 Thermal insulation steel pipe production series 8. 跨越式三通 Cross-over tee 9. 黄夹克保温管 Yellow PE jacket thermal insulation pipe 10. 黑夹克保温管 Black PE jacket thermal insulation pipe 11. 石油复合防砂筛管 Composite sand control oil screen pipe 12. 绕丝筛管 Wire-wrapped screen pipe 13. 割缝防砂筛管 Slotted and sand controlled screen pipe 14. 打孔筛管 Perforated screen pipe 15. 割缝筛管 Slotted screen pipe 16. 复合式筛管 Composite screen pipe 17. 套管转换接头 Crossover coupling of casing 18. 油管转换接头 Crossover coupling of tubing 19. 石油短节 Casing/tubing nipple 20. 油管悬挂器 Tubing hanger 21. 套管转换接头 Crossover coupling of casing 22. 加重钻杆 Hey weight drill pipe[收起]