| 물질명 |
Extract Residues (Coal), Naphthalene Oil Alk., Distn. Residues; Methylnaphthalene Oil Extract Residue; [The Residue From The Distillation Of Alkali-Washed Naphthalene Oil Having An Approximate Distillation Range Of 220캜 To 300캜 (428캟 To 572캟). Compo |