Tianjin TJL International Trading Co., Ltd which founded in 2005 has passed ISO9001-2000 International Quality System Certification, EU CE certification (AZ Certification, Drinking Water Hygiene License, Chinese Famous Brand, Credit AAA Grade) etc. qualification certification. Based on science and technology research, development, innovation and integrity management, our company has achieved rapid development in the areas of butterfly valve, gate valve, check valve, strainer, expansion joint, ...