As ISO9001: 2000 certificated company, Tianjin Pingyuan Hardware Co. Ltd is one of the earliest manufacturers and exporters in China, Our main products are: Washers, Stamping parts and fasteners. Washer Category: Flat washer; Square washer; Spring washer; Bowl washer; F436M washer; Bevel washer; Load indication washer; Tap washer; High pressure washer; Tubbish washer Standard: DIN; BS; NFE; ASTM; USS; SAE; FW; AS (as per customers' drawing) Material: Mild steel, Carbon steel, Alloy steel, Stainless steel and copper. Surface treatment: Plain, Zinc plated (blue zinc plated, And yellow zinc plated), Nickel plated, Phosphating, Black oxidation, Zinc mechanically deposited, And hot- Dip galvanized etc. The products are mainly exported to USA, Canada, Australia, Europe, Middle East, Southeast Asia and other countries and regions . The annual production capability reaches 8, 000 tons.