Alloy Tubing, Seamless Tubing, Nickel Alloy Tubing manufacturer / supplier in China, offering Nai-Lok 1/4" Dual-Stage Pressure Regulator 3500 Psi High-Precision Gas Control for Laboratory & Analytical Systems, Nai-Lok Ng Needle Valve, 4000psi, 1/4"Mnpt, Alloy400, Nai-Lok Tube Fitting Male NPT Elbow, 1/4′′mnpt X 1/4′′male Face Seal, SS316 and so on.