玻璃纤维被覆硅橡胶绝缘线
glass-wool coated silicon-rubber insulated wire
布胶绝缘鞋
cloth and rubber insulating shoes
布胶绝缘靴
cloth and rubber insulating boots
导热绝缘粘接技术
thermal conduction and insulation
电绝缘胶
electric insulativity cement
电器绝缘胶的研究
Study on insulating cement for electric appliance