Machining Parts, Hardwares, Screws manufacturer / supplier in China, offering CNC Machining Plastic Screw, Fiberglass Fr4 Hexagon Socket Head Screw, Non-Standard Hollow Vacuum Vented Screw with Hole, Hex Head, Through-Hole Bolt, Custom Aluminum Round Spacers-M3X6 Length 18mm, Plain Finish, Machined Hardware Standoffs and so on.