We are a professional exporter of porcelain insulators in china. We have been in this line of business for many years. All of our products are produced in accord with ANSI, BS, AS, DIN, IEC, etc. Certainly, we also have products of chinese standard(GB)and we can produce the insulators according to customers samples, blueprint and other requirements. Now, the following products are disc type: Disc suspension insulators We strictly produce the products in accord with the international standards, and we have a good technical team to guarantee the quality of the products. Our porcelain insulators are widely used in chinese and abroad electric network, railway electric facilities, and electric substations in china and abroad. And quality problems(trouble，accident) never happened! Both quality and prices of our products are very competitive! If you are interested in my products, please feel free to contact me. Price Terms: FOB/CFR/CIF Packaging: Wooden Case