Our standard range has specifications from M5 to M74 (diameter), and from 10mm to 2000mm (length), and meet the standardized specifications of:

1) Germany (DIN)

2) British System (BS)

3) American System (ANSI/ASME)

4) Australian System (AS)

5) Japanese System (JIS)

6) Guo Biao (GB, China National Standard)

7) ISO