The mould, gel coat formulation and winding process of high performance FRP electric insulating tube were summarized.
本文介绍了玻璃钢高强电绝缘管的模具、胶液配制及缠绕成型工艺。
After the timber frames being strengthened, a coat of insulating material has been set.
加固房屋构架，安装一层保温材料。
After the timber frames being strengthened, a coat of insulating material has been set.
加固房屋构架，安装一层保温材料。
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