Product Name: dial handwheel 
 Material: aluminum, plastic, bakelite, steel (chrome plated) shell made of aluminum alloy die-casting molding, through processing into textured. 
 Shell with plastic sprayed surface, sub-light and matte finishes colors: black, silver (customer requirements can also be customized) 
 Product Type: reconciliations, ruled dial handwheel the corrugated dial hand wheel, full scale dial hand wheel, double-amplitude tone dial handwheel, inside the corrugated dial handwheel 
 Surface ratio: have 4.6.8.10.12.15.18.20.24.25.30.40.50.80.100 for selection