A resin,comprising 20% by weight based on the weight of the phenol,of at least one unsaturated fatty acid.
树脂重量20%由苯酚(或:石碳酸)构成,(且)至少含一个不饱和脂肪酸.
供参
A resin,comprising 20% by weight based on the weight of the phenol,of at least one unsaturated fatty acid.
树脂重量20%由苯酚(或:石碳酸)构成,(且)至少含一个不饱和脂肪酸.
供参