Yantai Yantai laboratory supplies laboratory solid phase extraction tool [preferred] Yantai Shengyuan Shengyuan Scientific Instruments Scientific Instruments Co., Ltd. is a specialized laboratory supplies, scientific instruments and other high-tech products sales company, our products are professional ability, strong technical force, well-known companies developed and produced high performance, better durability. Since its inception, to provide the community with a large number of high-quality products, has been more than Yantai university laboratory, research institution, and work with them to reach a long-term stable cooperative relations, honored to be their recommendation enterprises. Contact: Mr. Wang Tel :0535 -6883515 13365359020 Address: Yantai City Tong Jiang Road Huangwu Birch Building, Room 2008, No. 9 Website: www.ytshengyuan.com specific product detail please contact us!