... DIAMETER:Φ20~Φ80mm;STRAIGHTNESS:±0.15mm/m;ROUNDNESS:±0.02mm;CHROME LAYER:0.02mm;MATERIAL:45 STEEL, CARBON STEEL45 STEEL, ... steel solid bar and chrome plated bar are widely used in the fields of machine production, electronic equipment, chemical industry, medicine, ... energy, building and so on. Price:usd920~1000/T,Discount for big quantity. CARBON STEEL BAR, CHROME ...