Detail: Hard PitchCoal Tar Pitch 1.RichResources-richresourcesofwashoilandannual400000tonscoaltaroilde epprocessing 2.Manufacturer-ShanghaiYiyangCommercialandTradeco., LTD.( FineCh....
Shanghai Yiyang Commercial and Trade co., LTD is production trade integrated company. Companies operating chemical products and mechanical products. Fine Chemical Department has three chemicals....
Detail: 4-Chloro-1, 8-naphthalic anhydride CAS NO.: 4053-08-1 Molecular weight: 232.63 Melting point: 207-210C Appearance: uniform off-white powder Purity: 95% Moisture: 0.5% Use....