... welding machine 2.75J engergy 3.8 to10 years service life 4.24-hour continuous operation 5.ISO9001:2008 Gold laser welding ... . 3.The focusing cavity's service life is 8 to 10 years, and the service life of the xenon lamp is over ... to remove stimulation of light on eyes during operation. 5. 24-hour continuous operation, with stable operating performance, and free from ...