Pharmaceutical material manufacturer from mainland China: Hebei Aimai Biotechnology Co., Ltd. Main products: P.B glycidate, nitroethane, human growth hormone, organic intermediate, synthesis material intermediate, API, plant extract and food additives. Check our website or leave me a message: www.hbaimai.com. Jack Ma, whatsapp: +8618000306065, e-mail: sales01@hbaimai.com