Http://jinwang01.itrademarket.com We can produce various composite insulators from 12KV to 158KV applied for transformer substation,electrified railway,power lines as well. Type of the products: suspension insulator,cross arm insulator,pin type insulator,pillar insulator,surge arrester etc.. For more, you are warmly welcomed to inquire directly. EMAIL jinwanggroup@yahoo.com.cn