Weifang changsheng nitrate limited company is located in Weifang city,near Qingdao port, in a favorable location and easy access to transportation facilities. 　　　Weifang changsheng nitrate limited company is a large chemical complex enterprise, focusing on manufacture, reasearch , development and sales, with advanced production process and high technical ability. Our major products are molten salt(also named heat transfer salt and heat transfer medium), potassium nitrate, sodium nitrite, sodium nitrate, barium nitrate, calcium nitrate, potassium nitrate used for agriculture, etc.And our company is the only one which can produce molten salt in China.The manufacturing technique of potassium nitrate has obtained national patent, patent number is ZL92106421.7, and the annual output of the potassium nitrate can be exceeding 15000 tons. Being entitled to self-import and self-export, we have obtained ISO9001:2000 quality management system certificate. We have established world-wide sales network and distributed products to Japan, Korea, Germany, America, India, Iran and Middle East. With the best quality and first class service, we are confident that we will win the trust and patronization from new and old, domestic and overseas customers！