4", 3-3/4", 3-7/8", 4-1/2", 4-1/4"
21 mm, 22 mm, 55 mm, 26 mm, 15 mm
Whitworth, Imperial, Metric, SAE, SAE/Metric
Chrome Vanadium Steel, Beryllium Copper, Aluminium Bronze, Drop Forged Carbon Steel, Alloy Steel
Chrome, Black Oxide, Mirror, Full Polish, Black Chrome
ASME B107.6., DIN 3113., DIN3113, ASME B107.100-2010, ASME B107.6
BS192:1982.