Langfang Asia-Pacific Longxing Chemical Co., Ltd. (Molecular Sieve Factory), known as the Beijing-Tianjin corridor is located in Langfang City, Hebei Province, has a good investment environment and convenient traffic conditions. Since its inception in 1989, my company in the chemical reagents, pharmaceutical raw materials, food additives and other products and chemical technology has won widespread praise. Asia-Pacific Longxing Backed by strong technological base, coupled with and the nati...