1. Specification: 2.5mm ~ 80mm available Standard: GB93-87(76) / GB 859-87(76) / GB 7244-87 2. Specification: No 4-3/2 Standard: ANSI / ASME B 18.21.1 3. Specification: 1/8~3/2 Standard: BS 1802 4. Specification: 3mm~48mm Standard: DIN 127 B / DIN 7980 5. Specification: 3mm~36mm

Spring Washers