1) High-precision,small noise 2) ACME,DIN, JIS,BSW, GB 3) ISO9001:2008, OEM service 4)low price/ timely shipments Application Suitable for various light vehicle transmissions, auto parts, construction equipment, machine tools, conveyors, material handling, multi-spindle drives, roller feeds etc. Standard ACME,JIS,DIN,BSW,GB etc.(including non-standard) Material Carbon steel such as C45,20CrMnTi, ...