... R, (HL104)BCu62Zn, (HL105)BCu58ZnMn4) Chemical composition:HS201: Cu >= 98% , Sn <=1%, Si<= 0.5% , Mn<= 0.5% , Zn ----- , Ni ------, ... P <=0.15%HS211: Cu Bal. ,Sn ------- , Si 2.8%--4.0% Mn 0.5%--1.5% , Zn ----- , Ni ----- , P ... -----HS221: Cu 59%--61%, Sn 0.8%--1.2% , Si 0 ... , P ----HL104: Cu 61.%--63%, Sn 0.1% , Si 0.1%--0.3% Mn 0.1%--0.3% , Zn Bal Ni 0 ...