700mm 40w CO2 laser tube are upgraded recently, which has the following advantages compared with previous products: 1. The light outlet of 40w laser tube was glass water cooling before, now it is copper water cooling, which increases the contact area and is more conducive to cooling2. The gas formu

JH laser is going to display our best products on Shanghai Int’l Ad&Sign 2019 as usual to make you know more information about our products.You are welcome to visit JH Laser at Shanghai Int’l Ad&Sign Exhibition 2019Exhibition info is as follow:Exhibition:The 27th Shanghai International AD&Sign Techn