1.over 30 years of manufacurer experience 2.Easy to handle , fiber handle 3.Friction and spark will not crash Non sparking tools ,Flat File , hardware hand tools 1.Specification No.L(inch)L(mm)B(mm)H(mm)Be-Cu(g)161501647528200214.5160310250256282412300306.5455514350328675616400329.59252.The processing procedure Al-bronze (HRC≥25°b>75-85kgf/mm² ) Be-bronze(HRC≥35°b>105-120kgf/mm²) 1) To prepare ...