Beijing Tongyizhong Specialty Fiber Technology & Development Co., Ltd is a state-owned company and high-tech enterprise which specilized in focusing on the R&D and production of UHMWPE (Ultra-high Molecular Weight Polyethylene) fiber DOYENTRONTEX® since 1998. We are ISO 9001:2008 certified, with good quality control and timely delivery service. Among 40 patents filed home and abroad by us, 20 of them have been authorized (including European, Korean, Russian patents, etc.).Ranging from 30D to 4800D, our products are of higher tenacity and modulus among our peers while the price is enough fair since we’re manufactory, we’re the source.As one of the oldest and largest Chinese manufacturer in bulletproof area, about 70% to 80% of our products are exported worldwide, mainly the Middle East, Southeast Asia, Europe and South America. Proudly, our company is certified by ISO 9001:2008 and 20 patents for invention have been authorized. Besides, we have test reports of NIJ IIIA, NIJ III and NIJ IV from H.P. White laboratory, TNO, OBL, Chesapeake, My Wall Lab and domestic authoritative test institutes for our high performance bulletproof products.Welcome to contact us for more details of our products.