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釬焊材料
磷-銅焊環(huán)
磷-銅扁條
磷-銅扁絲
2%銀-磷-銅
2%銀-磷-銅焊環(huán)
2%銀-磷-銅焊圈
2%銀-磷-銅特殊環(huán)
3%銀-磷-銅
3%銀-磷-銅焊環(huán)