1)pine oil,松焦油2)pine tar,松焦油3)crude pine tar,粗松焦油4)pine tar pitch,pine tar;pine tar oil,tar oil;tar;coal tar,松焦油，沥青5)pine tar pitch,松焦油沥青6)Pine taroil,腐必清（松焦油）
用法例句
th pine tar have shown that the softener can not only replace the pine tar but also has more advantages than it while both used in the tire compound.
