Hangzhou Wanghai Import And Export Co., Ltd is located in the paradise ofHangzhou, close to Xiaoshan International airport. It was established in 1988 and specialized in the production and sales of raw chemical materials. In business since 1988,our products antimony ingots, tin ingots, carbon black, Ethylene glycol, white carbon black, magnesium oxide, sodium hydroxide lithopone, titanium pigment, chrome green, iron oxide and other raw chemical materials