We specialize in custom precision machinery parts. 1.Certification:ISO9001 2. Drawings Accepted 3. Quick shipment 4. ... in 1994,We are specialize in produce all kinds of precision machinery parts(nuts,bolts,fasteners,washers,pipe fitting,washers,etc),our ... alloy3 Standard ISO ASTM GB ASTM DIN JIS4 Process drawings-mould making-raw casting-sandblasting-rough machining-finish machining-surface treatment ...