rosin varnish
常见例句
- Varnish is made from the rosin ester or rosin modified phenolic resin and reaction with mineral oil, vegetable oils and other additives (such as gelling agent and chelating agent).
油墨连接料树脂（俗称软树脂）主要由松香酯或松香改性酚醛树脂、矿物油溶剂、植物油及其它添加剂（凝胶化剂、螯合剂等）反应而成。 返回 rosin varnish