... 2.5mm-80mm CS&AS&SS&Rubber ISO9001:2000,API,CE,BV ANSI B18.21,ASME B16.21,DIN127 ,JIS steel flat ... ,etc. 1. Specification: 2.5mm ~ 80mm availableStandard: DIN127B / DIN7980 / BS1802 / ANSI/ASME B 18.21.1 / JIS B 1251 Features: BS ... , DIN, JIS2. Specification: No 4-3/2 Standard: ANSI / ASME B 18.21.1 3. Specification: 1/8’’~3/ ...