Qauv Tsim Tshiab

Lub tuam txhab muaj lub tuam txhab tsim kev lag luam, suav nrog cov qauv tsim qauv, txhua tus neeg engineers, txhua tus uas tau tsim ntau xyoo kev ua si xauv kev lag luam;

Txhua txhua xyoo, 3-4 thawj tsim ntawm zinc alloy tuav yuav tsim; (Muaj 7-8 thawj thawj txhua xyoo, thiab peb tsuas yog xaiv qee cov qauv tsim los ua ke tsim cov khoom lag luam ntawm kev ua kom zoo; Cov txheej txheem cov txheej txheem yuav phim rau cov txheej txheem kev kho mob deg raws li cov khoom uas xav tau ntawm cov khoom lag luam kom pom cov kev zoo nkauj ntawm cov khoom lag luam;