COMPANY PRODUCTS UNSHAPED REFRACTORIES ISO9002 CERTIFICATION CONTACT US GUEST BOOK E-Mail O A Kaifeng Gaoda New Type Refractory factory, a private-own stock company, expert in researching, developing, producing, selling of high technology unshaped refractory and its raw material.This factory locates in Kaifeng, east of Henan province where full of raw bauxite deposits. Kaifeng is famous for ...