Hebei Honray Imp. & Exp. Co., Ltd. Located in Shijiazhaung city ,Hebei, Chiina Is a professional Amino Acids supplier. We have been focusing on Amino Acids for more than 20 years. L-Lysine , L-Threonine , L-Tryptophan , L-Methionine , DL-Methionine , L-Valine , L- Leucine , L-Isoleucine , L-Phenylalanine and Glycine are our strong( key ) Products.