Heat Sink, Turning Machinery Part, CNC Machining Part manufacturer / supplier in China, offering DIN 3870 Non-Soldering and Soldering Compression Fittings - Union Nuts Series L1 (Pipe Nuts), DIN 6325 Parallel Pins, Hardened, Ground, DIN 1472 Grooved Pins, Half Length Taper Grooved and so on.