Wuhan Yuancheng Gongchuang Technology Co.,Ltd.,a leading supplier of L-Carnitine,VitaminB1,,Coumarin,Benzalde hyde,flavoring & essence etc... The company invests large fund and brains to R&D department to research fine chemical, biochemical, pharmaceutical & its intermediates products that fit the demand of the market. High level research group, advanced apparatus and good scientific atmosphere ensure the quality of R&D. All the products in