3-3/4", 4", 4-3/8", 3-7/8", 4-1/2"
21 mm, 5.5 mm, 22 mm, 55 mm, 19 mm
Imperial, Metric, Whitworth, SAE, SAE/Metric
Aluminium Bronze, Drop Forged Carbon Steel, Chrome Vanadium Steel, Beryllium Copper, Alloy Steel
Chrome, Black Oxide, Mirror, Full Polish, Black Chrome
ASME B107.6., ASME B107.6
BS192:1982., DIN3113, DIN 3113B, DIN 3113.