W1-- all of the housing, screw and band are silvery or golden color galvanized steel;
W2-- screw is galvanized steel, other parts are 300ss stainless steel;
W4-- all of the three parts are 300ss stainless steel;
W5-- all of the three parts are 316ss stainless steel.
The sizes are as the following:8-16mm,
11-20mm,
13-23mm,
14-27mm,
18-32mm,
21-38mm,
21-44mm,
27-51mm,
33-57mm,
40-63mm,
46-70mm,
52-76mm,
59-82mm,
65-89mm,
72-95mm,
78-101mm,
84-108mm,
91-114mm.
105-127mm
118-140mm
130-152mm
141-165mm
155-178mm
175-197mm
194-216mm
213-235mm
232-254mm
251-273mm
270-292mm
289-311mm
Germany Type Hose Clamps