... engraving , cutting machine 2.high power ,long life ,good quality las Carbon Dioxide Laser Tube for laser machine 1.Stability ... the laser tube has no attenuation during long time working.Quality assurence Lifespan:6000 HoursWarranty period: 180 days1.Repair or ... 2809526YesHY41400±2Ø80±210012028HY61600±2Ø80±213015030HY81800±2Ø80±215018030 Hight quality of carbon dioxide laser tube for laser machine