4-3/8", 3-7/8", 4-1/2", 4-1/4", 5"
30 mm, 21 mm, 5.5 mm, 55 mm, 15 mm
Imperial, Whitworth, Metric, SAE, SAE/Metric
Aluminium Bronze, Chrome Vanadium Steel, Drop Forged Carbon Steel, Beryllium Copper, Alloy Steel
Chrome, Mirror, Full Polish, Black Chrome, Satin
DIN3113, BS192:1982.
DIN 3113, ASME B107.6., ASME B107.6
BS192:1982., DIN 3113.