4", 4-1/4", 3-7/8", 4-1/2", 4-3/8"
21 mm, 22 mm, 55 mm, 26 mm, 36 mm
Imperial, Whitworth, SAE, Metric, SAE/Metric
Drop Forged Carbon Steel, Aluminium Bronze, Chrome Vanadium Steel, Beryllium Copper, Alloy Steel
Chrome, Mirror, Full Polish, Black Chrome, Satin
DIN 3113., ASME B107.6., ASME B107.6
BS192:1982., BS192:1982.
DIN 3113, DIN3113