photo frame machine

1.No use air compressor,no noisy
2. can join about 200-300 frames one day.
3.All fittings of the machine have been proved.
1.No use air compressor,no noisy
2. can join about 200-300 frames one day.
3.all fittings of the machine have been proved,such as: nail trough whole,head ,material,and the outside painting,