... we have a various type of this product, the goods are both excellent in quality and reasonable in price We supply high quality ... chrome alloy steel, in both inch and metric sizes. Dowel Pins are available in pull and plain design. We also custom manufacture special ... steel, non-ferrous, grey iron, ductile cast iron and so on3.Process: wax injection, wax welding, dipping, sand-coating, shell-making, ...