China Shaanxi Welong Petroleum Equipment Co, Ltd

Hearth roll Material: Cr18Ni9, Cr25Ni12, Cr20Ni10, ZGCr25Ni20; ZGCr25Ni35Nb;ZGCr28Ni48W5, nicochrome or cus

Hearth roll Material: Cr18Ni9, Cr25Ni12, Cr20Ni10, ZGCr25Ni20; ZGCr25Ni35Nb;ZGCr28Ni48W5, nicochrome or cus

Rollers Material:2025 NiCr + AISI 321 + AISI 310 1) Materials: HK, HH, HF, HX, 304, 304L, 316, 316L, 1.4879

Investment Casting       1)  Processes:  Silica sol, Complex Shell Process, Wat

Our capacity for roll and tubes as below: 1) Materials: HK, HH, HF, HX, 304, 304L, 316, 316L, 1.4879, 2.487

Drill Collar 1. Size: as customer's request 2. Standard: API 9. Certification: ISO9001, API Pr

Drill pipe is a major drill component which connects rotary 

Investment Casting       1)  Processes:  Silica sol, Complex Shell Process, Wat

Investment Casting       1)  Processes:  Silica sol, Complex Shell Process, Wat

Investment Casting       1)  Processes:  Silica sol, Complex Shell Process, W

Investment Casting       1)  Processes:  Silica sol, Complex Shell Process, W

Forging   1) Processes: Close Die forging, Open die forging   2) Materials: 45# steel, 40Cr, 42CrM

Forging:  We can provide forged ring, open-die forging, forged shaft, forged bush, forged shape, drop for

Casting Process: 1.investment casting:                    

Casting Process: 1.investment casting:                    

Oil Field Equipment Drill Stabilizer/Drill Centralizer •API standard oilfield stabilizers are manufact

F series Mud Pump   F series mud pump is applicable to the requirement of high pump pressure in oi