Shanghai Trisun Parts Manufacture Co., Ltd  is an advanced fluid seal designer and manufacturer. The corporate headquarters are in Shanghai Pudong Financial Center, and sales and branches are located in Guangzhou and Wenzhou. There are two production facilities, located in Shanghai Songjiang Industrial Zone, Wenzhou Ouhai Sanxi Industrial Zone, Wenzhou Industrial Zone facility has received both the ISO9001:2008 and ISO/TS16949:2009 Quality Management Certifications, and ROSH, CIT, NSF certifications. Songjiang Factory has passed API certification.