patent no. : zl 2011 1, 0049789.6, equipped with 1 to 4 sets of laser, can work at the same time, work, work alone or alternate each other. a similar form on multiple engines, to guarantee the strong laser energy output. have a spare laser, uninterrupted operation, ensure the continuity of the operation and safety. single pulse energy is 5.0 j, the output frequency 50 hz, shorter operation time, better treatment effect.
more