Detailed Product Description

The  code  of  the  lock  is able  to  be  changed  from   type  "A"   to   type"B"  and  vice  versa by  using  the  spanner provided  by  the  lock manufacturer.Once  the  code  is changed  ,the  old  keys wil l become  invalidated.New  keys wil l work wel l w ith the  lock  fter trans-coding. Its technology has reached the level of the world's leading .  Also, it was approved the National Patent Certificate in 2006 year.