Dear K.Sunny,
After we were informed about hinge problem we have invited hinge supplier “Premier Laser Co.,Ltd.” came to acknowledge the problem and find solution by adding head of pin to hinge to prevent pin fallen off and will change immediately after finished meeting on 05/03/15
But currently we still don’t order the revised hinge as discussion because the rest of existing hinge in our store and have to use all the rest first.
So the problem of hinge that we found now is the old hinge which we rectify by welding pin to prevent pin fallen off and after we found this problem since 14/12/14 we have welding all existing hinge in our store already.