QSn4-3 tin bronze: tin bronze muaj zinc.Nws muaj kev hnav tsis kam thiab elasticity, zoo tiv thaiv magnetic zog, tuaj yeem tiv taus kub lossis txias ua haujlwm zoo;nyob rau hauv lub xeev nyuaj, zoo machinability, yooj yim vuam thiab brazing, corrosion kuj nyob rau hauv huab cua, dej tshiab thiab dej hiav txwv ...
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