备注:  以上描述，仅作参考，并不表示您收到的产品，与此项描述完全相符，产品的出厂标准，请参见        质量标准。
质量标准  
   
        钨粉：

        主含量: W                  ≥99.95%
        杂质含量(不大于ppm)
        Al                          5
        As                          10
        Bi                          3
        C                           50
        Ca                          10
        Cd                          1 
        Co                          10
        Cr                          20
        Cu                          3 
        Fe                          40
        K                           15
        Li                          50 
        Mg                          10 
        Mn                          10
        Mo                          30
        Na                          15 *
        Ni                          20        P                           10
        Pb                          3 
        S                           10
        Sb                          5
        Si                          10
        Sn                          3
        Ti                          10
        V                           10   

        4N
        外观Appearance                               Silver powder
        ICP: Confirms Tungsten Component             Confirmed
        痕量金属Trace Metal Analysis                 ≤200.0 ppm
        纯度Purity（metal basis)                     ≥99.99 %

        更多钨丝规格请来电咨询
贮存  
用途  大型板坯、钨铼热电偶原料(FW1),触头合金、高密度屏蔽材料(FW2)。
联合国编号 3089
Risk：    R11- R36/38-
Safety :  S6- S26- S36-
Hazard :  F - Xi -