Bambo Doi ndi manejala wamkulu wogula kampani yopanga makina opunthira ku Vietnam. Pazaka 20 akugwira ntchito, adawona kampaniyo yakula kuchoka pa fakitale yaying'ono kufika pa kampani yayikulu yopanga makina yokhala ndi antchito mazana angapo. Popeza kampani yawo inali ndi mbiri yakale, inkayamikira kwambiri magwiridwe antchito a makinawo.
Chifukwa chake, theka la chaka chapitacho, kampani yake idayambitsa makina odulira ulusi wa laser wa 1000W kuti adule zinthu zomwe zimapanga makina odulira. Atatha milungu ingapo akugwiritsa ntchito, adaganiza kuti ndikofunikira kukweza magwiridwe antchito a makina odulira laser pang'ono, kotero adachita kafukufuku watsatanetsatane pa ma chiller ozungulira mpweya ozizira pamsika ndipo pomaliza adasankha S&A Teyu water chiller CWFL-1000 kuti aziziritse makina odulira ulusi wa laser wa 1000W.
Choziziritsira madzi chozungulira cha S&A Teyu choziziritsira mpweya chozizira CWFL-1000 chapangidwa mwapadera kuti chiziziritse laser ya 1000W fiber ndipo chapangidwa ndi njira ziwiri zowongolera kutentha zomwe zimatha kuziziritsa chipangizo cha laser ya fiber ndi cholumikizira cha QBH/optics nthawi imodzi. Kwa ogwiritsa ntchito laser ya 1000W fiber, choziziritsira madzi chozungulira cha S&A Teyu chozizira mpweya chozizira CWFL-1000 ndi njira yabwino kwambiri yochotsera kutentha kowonjezera kuchokera ku laser ya fiber.
