Laizhou Tengyuan Chemical Machinery Factory is Beijing Zhongkonajie Environmental Science and Technology Research Institute, Beijing University of Technology Weiye Scientific Research Center, Shandong Star Enterprise of Scientific and Technological Innovation, Center for Quality Guarantee of Light and Medium Products, Demonstration Unit of Double Guarantee of Quality and Credit, Key Promotion Unit, Consumer Satisfaction Unit, National Chemical Machinery Industry Focus Technology backbone enterprises.
Shanghai Chengshang Network Technology Co., Ltd. is a network integrity service provider invested by Shanghai Jiesheng Business Consulting Co., Ltd., which provides "integrity" certification service for Alibaba, China's largest B2B website. We passed the certification in 2007, which is the fifth anniversary of the past few years. Please rest assured that our customers will choose to buy our products.
Authorized address: http://lztyhg.cn.alibaba.com/athena/bizreflist/lztyhg.html
Tengyuan chemical machinery