不含煤油或是松焦油不含激素。
本文对4151软化剂及松焦油、古马隆等软化剂进行了性能对比。
The property of 4151 softener is compared with that of other softeners.
一种结晶化合物，C18 H18，从由松焦油、化石树脂及焦油中提取。
A crystalline compound, C18H 18, derived from pine tar, fossil resins, and tar oils.
本厂其它产品有：420再生活化剂、T501抗氧剂、精制420活化剂、煤焦油、松焦油、双戊烯、白油膏、黑油膏等。
Other products: 420 reclaimed activator, T501 antioxidant, refined 420 activator, coal tar, pine tar, dipentene, white factice and black factice.
本厂其它产品有：420再生活化剂、T501抗氧剂、精制420活化剂、煤焦油、松焦油、双戊烯、白油膏、黑油膏等。
Other products: 420 reclaimed activator, T501 antioxidant, refined 420 activator, coal tar, pine tar, dipentene, white factice and black factice.
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