center> center> Express (microblogging) Shay-Min Huang News correspondent reported from the Express reporter informed official website of the AQSIQ, the Bureau has recently announced a GSM / GPRS mobile phone product quality supervision and inspecti …

According to the National Standardization Management Committee in 1999 promulgated the "General Electric Bicycle conditions" requirement, electric bicycle must have four technical standards, which calls for maximum speed not exceeding 20 km / h, the vehicl …