Jiande Zishanwan Fine Chemical Co., Ltd

Sciencetech Inc. has been designing and manufacturing high performance, reliable optical instruments and innovative technology for scientific research and industrial applications in Canada since 1985. Our instruments are used by researchers and indus

Lin'an Weilan Additives Co., Ltd. is located in Qingshanhu Street, Lin'an City, Zhejiang Province, on the "Hangzhou Mount Huangshan" golden tourism line, 38 kilometers away from Hangzhou.