This standard is applied to crude paraffin which is made of raw material with oil paraffin and is diaphoresised or de-oiled not by decolor.

 
  • 本标准适用于以含油蜡为原料,经发汗或溶剂脱油,不经精制脱色所得到的粗石蜡。
今日热词
目录 附录 查词历史