- modified coal tar pitch pencil pitch for electrolytic aluminium
- 2016-12-29 18:10
- 1.lardge supplier in china2.Purity hightest3.High-quality4.Reasonable price
- crude coal tar for building coating
- 2016-11-13 06:19
- 1.The relative density : 1.18 ~ 1.232.Toluene insoluble content,% 28-343.Quinoline insoluble content,% 8-144.high qualit