铅黄铜酸洗后为什么不黄不亮

来源：百度知道 编辑：UC知道 时间：2024/05/12 09:26:03

根本对你牙没好处能磨损的.别用了
铅黄铜成分分析标准物质
GBW NO Cu Fe Mn Al Sn Pb Sb Bi P Zn Ni Si As Mg
GBW02116 ,0.06 ,0.007 , ,0.02 ,0.007 ,0.02 ,0.0002 ,0.0001 ,0.001 ,余量 ,0.01 , 0.194, ,
中国标准物质标准样品电子商务网 Email: dacheng@gbw-gsbs.com 电话:029-36989053 传真:029-38826618