High quality porcelain insulator MT606 1. porcelain insulator 2. factory directly best price 3. screw insulator High quality porcelain insulator MT6061. Glazed porcelain body2. Endure pull: 681 KG,27204KG,500KG3. screw: zinc-plated iron4. weight: 21KG5. packing: 50pcs/carton6. carton size: 31.5*23*33cm7. payment: L/C,TT