Metal Parts, CNC Machine Part, Hardware manufacturer / supplier in China, offering Socket Head Cap Screws Grade 8.8 10.9 12.9 Metric Imperial Carbon Alloy Stainless Steel Bolt and Nuts Inner Hex Allen Stainless Steel Bolt, Metric Unified Bolt and Nuts SS304 SS316 High Tensile Corrosion Resistant Stainless Steel Half Full Thread Hex Hexagon Allen Socket Head Cap Screw Bolt, Dosence Hdm PVC PVDF PTFE SUS316 Chemical Injection Oil Gas Environmental Waste Water Treatment Variable Speed Mechanical Diaphragm Dosing Metering Pump and so on.