PVC i ulated wire 聚氯乙烯绝缘电线

gla i ulated wire 玻璃绝缘线

teflon i ulated wire 聚四氟乙烯绝缘电线

paper i ulated wire 纸绝缘线

enamel i ulated wire 漆包绝缘线

cotton i ulated wire 纱包绝缘线

ceramic i ulated wire 陶瓷绝缘线

bitumen i ulated wire 沥青绝缘线

polyethylene i ulated wire 聚乙烯绝缘线