尤物视频污,99热99热99超碰,精品久久久久女少妇,少妇精品无码,日B视屏久久香色,亚洲美女午夜福利av,国产美女被操,国产九九精品,国产久久色情

Founded in April 2014, Gulang Changhai Chemical Co., Ltd. is a fine chemical production base invested Jiashan Hailun Fine Chemical Factory and Gulang Xinmiao Group Company. Located in Tumen Township Industrial Park of Gulang County in Gansu Province, we enjoy superior geographical location and attractive scenery, with Hexi Corridor, Jingtai County and Tianzhu County of Gansu province, Liangzhou District of Wuwei city, and Tengger desert nearby. It is communications centre of the old Silk Road.Now, we are a manufacturer of fine chemicals such as Nitroguanidine, Methyl nitroguanidine and N-Nitroiminoimidazolidine, which are the intermediates of drugs and pesticides. Covering an area of over 20,000sqm, we now have CNY 20 million of fixed assets, 1,200sqm of buildings and more than 100 employees, 30 of them are managers and technicians. Now, we use the leading technologies to have production and advanced inspection methods and related inspection facilities to check the quality of products. All operations of our daily production are strictly in accordance with the standards of ISO9000 quality system.