petroleum drill pipe

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[CN] Tianjin Selte Pretoleum Drilling Tools Co.,Ltd [Manufacturer]
Key Products/Services:
Business Overview: Tianjin Selte Petroleum Drillin Tools Co., is the subsidiary of Tianjin Zhengdong Investment Group.Founded in 2004 with RMB 180M registered fund and total R...

[CN] Dongying Haicheng Imp&Exp Co.,Ltd [Manufacturer]
Key Products/Services:
Business Overview: The company's business scope includes high -grade precision castings and machined parts in stainless steel, heat-resistant steel, carbon steel, low alloy st...