Tai Yi Precision metals Co. Ltd has more than 20 years  experience of OEM precision metal parts,CNC machining and turned parts, such as fasteners, screws, bolts, thread bushing, shafts, fittings, studs, inserts, pins, rivets, standoffs and irregular-shaped metal parts. Our products are widely used in electronic products, computers, automobiles, machinery, medical and sports equipments. welcome to contact my email-michaelchow2008 at foxmail.com