Early resins were made from raw materials such as the oils from Soya Beans, Flax Seeds, China Tung Nuts, Safflower seeds, Cottonseeds, and even Sardines!
Early resins were made from raw materials such as the oils from Soya Beans, Flax Seeds, China Tung Nuts, Safflower seeds, Cottonseeds, and even Sardines!
早期的树脂产生于原材料，像从大豆中提炼出来的油，亚麻的种子、中国的油桐果、红花种子、棉籽和沙丁鱼。