Zhejiang Shuangtai Motorcycle Parts Co.， Ltd. specializes in standardized items， non-standardized items and motorcycle parts such as bolts， nuts， and washers. We own the tremendous technology and advanced equipment. We produce according to national and international standards， including national GB， American form ANSI， German form DIN， British form BS， Japanese form JIS， and international form ISO. The specifications are from M3 to M30， and grades are from German form 4.8 to 10.9 and American Grade 2 to Grade 8. Surface treatment covers plain， black， zinc plated and green. Our products are high praised by users with the complete variety and reasonable price. We welcome more customers to visit us for expanding the opportunity of business cooperation. We thank all circles for your support and kindness.
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