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Shenzhen Proyu Technology Co. Ltd (Office)                        5#307 Jinfanghua No.2 Xinhe, Hebei, Bantian Street,  Longgang District, ShenzhenContact Now
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New quality principle for the Keyless door lock china

New principle for the Keyless door lock china: to uplift the level of lock, and the quality standardshall not be lowered . To fundamentally reverse the low grade of Keyless door lock in China with, low prices, poor technical level of backwardness, to take a serious study, differentiated approach, combined with China's actual situation to get it completed. In the process of revision, the foreign advanced standards such as BS (British National Standard) and JIS (Japanese Industrial Standard) of American ANSI (American National Standard) are used as importance reference.
The new standard QB / T2473-2000, QB / T2475-2000, QB / T2474-2000 and QB / T2476-2000 are higher than the previews standard。