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254 ^1110!t Hltr-sf=ql 4^l rl. Pb-sb -Er= 5rl eEIe+ zldJtsg t49E "J= .J+gtr ol ==tqs 4r-I'Il, ol+eql^-i= pbol }}4. ++eql^'l= *44 sbel ,+4. z4 _ tr.+4*+gB+e]tr}. (f) ral 10-103 Pb+sn-dE ^al *a q^.1= Bg ae r+ Azl o 'e. o- trH 10-1041E =tg Sn tlo/o, r*"lzl pbol q, 'J"Eg pb-sb(hard lead)oltrl. olag +2. + 14 o _ tr "],til t *t zlzlql pbtl B}rtl fzl ^Jetr +4t 4+ B + gltrl. oltrI +4E z tI+ H2org ^I*qIq. trB 10-1051= pb-Sn-Sb(white metal)rzl o -tr (a)E Pb-10Sb-10SnBJ#(q q B*) o E .J+ € g Pb-sn-Sb(white metal) ol r+. ol a g +=+ =zlg_tr_ pbzl r*oltl zlzlril ql P(susn)qElE pbol Bg l*;l9 zlzlotl Sb EEt6|q E4I t olstr +EI raJ 10-104 Pb-Sb-Er= 44