Ntev npaum li cas lub cav qev dub muaj ntsev sim ntev li cas? Ib tug neeg tau thov Miss Wu, peb tus neeg muag khoom muag. Qhov tseeb, lo lus nug no tau teb los ntawm ntau tus neeg tuaj ua ntej, tab sis txij li qhov tus neeg tau thov dua. Cia tus tham txog nws.
Dub tsav lub cev qia hlau, nyob ntawm seb dab tsi dub, dub dub, dub zinc, dub ncuav mog qab zib, Dacromet dub, zinc-nickel alloy thiab thiaj li. Ntawm no peb yuav tham txog ntsev tshuaj rau lub sij hawm sib txawv rau cov qoj dub tsav tsheb screws.
Lub cev muaj zog ntsia hlau
1. Lub cev muaj zog dub tsav tsheb, kub kub, feem ntau cov tshuaj tua ntsev siv sijhawm luv luv, feem ntau yog ob peb xuab moos ntawm xeb. Kwv yees li 4-8 xuab moos yog qhov tsis tau.
2. Cov ciav hlau ntev ntawm kev tiv thaiv ib puag ncig zinc lub cev, electroplating ib puag ncig tiv thaiv dub zinc, feem ntau nyob ntawm tus neeg siv khoom, qee cov neeg tuaj yeem yuav tsum tau 24 teev, thiab qee cov neeg yuav tsum tau 48 teev. Peb cov neeg tau txais kev pab tam sim no yuav tsum tau txog 96 xuab moos.
Lub cev muaj zog screws
3. Dub nickel lub cev qij txhuav, tshuab electrophlating dub nickel tsav motor screws, peb tsuj tsawg electroplating, tab sis txog li 24 teev mas nws yeej tsis muaj teeb meem,
4. Lub cav ntaiv pa ntev, saib cov neeg yuav tsum tau muaj, ntau tshaj 1,000 teev tsis muaj teeb meem.
5. Zinc-nickel alloy motor ntev screws, ntsev tsuag tshuaj lub sij hawm yog feem ntau li ntawm 500-1000 teev.