3W 5W uv laser source marking shell phone case of HUAWEI Mate 40 After HUAWEI Mate 40 launched, many mobile phone shell producers begin to mass produce the HUAWEI Mate 40 shells. Recently, we received a message sent from a client from Zhejiang. He mentioned that he was looking for a laser to do the laser marking on the mobile phone shell and we recommended RFH 355 series UV laser.   Using RFH 355 series UV laser to laser mark on HUAWEI Mate 40 shell can make the patterns and characters on the shell more clear and long lasting even under the circumstance of oxidation and constant friction with users’ hands. Therefore, the mobile phone shell can be used for a long time so that its value and performance can be maximized with minimum cost.