DONGGUAN TW-SCIE CO., LTD. Is a subsidiary of Tewang Group, established in 2002. Its main products are: indoor & outdoor fiber optic cable, ADSS, OPGW, FTTH drop cable, patch cord, pigtail and other series and optical passive device series. The products are strictly implemented in national standards, and have obtained the product certification certificates of the broadcasting and television network access license, the power supply special communication equipment network access license, the telecom equipment network access license, the TLC certification, the Brazilian ANATEL, the European CE, RoHS, and REACH. The company has obtained ISO9001, ISO14001, OHSAS18001, 5 invention patents, 58 utility model patents, national high-tech enterprise certification.