Diaphragm Valve, Compression Fitting, Tube Fitting manufacturer / supplier in China, offering PCTFE Thread Port Size: 1/4inch NPT Female Gas High Pressure Regulator, 413bar SS304 3000psi Pressure Manual Male Female Threaded 1/2 Flow Control Valve Needle Valve, 413bar Gas High-Purity High Precision Flow Control 6000psi 1/2 Inch Needle Valve and so on.