... SGS,ISO 4.free sample 1.New arrivals refined naphthalene,crude naphthalene,industrial naphthalene 1).china ... ISO,COA,MSDS 2.Technical date: Name Index Refined NapthaleneIndustrial NathaleneHigh-classGrade OneQualifiedHigh-classGrade OneQualifiedAppearanceWhite powder, ... is used to produce βhydroxynaphthalene,reducer,phthalic anhydride, refined naphthalene , dye intermediate and synthetic resin etc. ...