QSn4-3 tin bronze: tin bronze nwere zinc.Ọ nwere oke mgbochi na-eyi akwa na ngbanwe, ezigbo mgbochi magnetik, nwere ike iguzogide nhazi nrụgide ọkụ ma ọ bụ oyi;na steeti siri ike, ezigbo igwe, ịgbado ọkụ na brazing dị mfe, nguzogide corrosion na ikuku, mmiri ọhụrụ na mmiri oke osimiri ...
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