Black phenolic plastic. Hub ø20 H7 whole with 5mm keyway. Graduation ring matte anodised aluminium with black marks and numbers. Right-hand graduation (it increases as handwheel is turned anticlockwise) with 0,10,20,....,90 numbering (100 dividing marks).
Central lever body of black mat thermoplastic, glass-fiber reinforced. Zinc plated steel stud. Special bores, different arm lengths, different handle shapes, and custom labeled cover disk available upon request.
Central lever body of black mat thermoplastic, glass-fiber reinforced. Zinc plated steel stud. Special bores, different arm lengths, different handle shapes, and custom labeled cover disk available upon request.
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Operating handwheels 
