Tuoshi is one of the biggest manufacture in China which focus on wifi and 4G products for more than 15 years. We have our own SMT line Assemble line and Moulding machines. Quality is our life, we always regard quality as the top important thing, so we have full system about quality: 1: Complete team about IQC, IPQC, FQC, OQC, and testing lab center. 2: Certified by ISO9001, ISO14001, ROHS. 3: Every work know how to check the product at his own stage and also can check the last step quality.