非金属杂质 meaning in Chinese

non metallic impurity
non-metallic impurities
nonmetallic inclusion

Standard test method for nonmetallic inclusion content of powders intended for powder forging applications
低合金粉末锻钢部件的非金属杂质含量的标准测试方法
Metallographic examination ; microscopic examination of special steels using standard diagrams to assess the content of non - metallic inclusions
金相检验方法.用金相图对优质钢的非金属杂质作显微检
Solder bar is made from high purity metal . by means of strict qualitg control the oxide and metallic and non - metallic impnrities and effectively minimized , the available high purity solder bar is with uniform and glazed surface good wetting and spreading ability after molten bright joint and minimum oxide residue after soldering . our product is suitable for wave and handwork soldering with high quality requirement
本公司生产焊锡条采用高纯度金属原料，在严格品管条件下，有效控制氧化程度以及金属和非金属杂质含量，焊锡条表面均匀光滑，纯度极高，熔化后流动性好，润湿性极佳，焊点光亮，氧化渣物极少发生，适用于高品质要求的各种波峰焊和手工焊。