Shield Standard Parts Company Limited founded in 1996, Loated at Rui&＃039;an Zhejiang Province, the famous base of manufacture in the world. We provide standard parts, such as washers, pins, Bolts, Rivets, Nuts, and so on. We Promise the quality of our products, and have passed through certifications, like ISO9001. Our main products are following: I. GB Fasteners: Flat Washer, Lock Washer, Spring Washer, and so on. II. DIN Fastners: DIN471, DIN472, DIN6798, DIN6799, DIN6797. III. Plastic Washer: Oxygen Washer, Bakelite Washer, and so on.