focus and collimating lens install guidance

We deal in #lasermarking #plasmacutting #lasercutting #laserwelding #fiber laserspareparts in #Raytools #precitec #trumpf#amada #wsx #bystronic #DNE #Mitsubishi #plasmaconsumables in#hypertherm original parts #AJAN #Victor #BlackWolf #kjellberg #ESAB #FY#YK MIG/TIG/CO2 WELDER PARTS Email to joyce_ebeyc@outlook.com Instant messenger by +8617386145503（Mobile/whatsapp/wechat/skype/line/zalo） Web:www.ebeyc.co www.ebeycchina.com