1. Cov ntaub ntawv xaiv Raw: Cov ntaub ntawv uas nquag muaj cov khoom siv roj carbon hlau, hlau steel, ineloy steel, ineloy steel, thiab lwm yam uas tsim nyog raws li kev siv sib txawv raws li kev siv sib txawv thiab cov kev xav tau
Cov khoom siv raw.
2. Cov Khoom Siv Khoom Siv: txheej txheem cov ntaub ntawv nyoos rau hauv tuab ntsia hlau lossis steel xaim, thiab ua kev kho cua sov, kev kho kom sov thiab lwm yam.
3. Txias ntxig ntsia hlau: tuab ntsia hlau lossis steel hlau yog txias-taws rau hauv cov ntsia hlau los ntawm ntau cov txheej txheem.
4. Kev kho cua sov: analing, quenching thiab lwm cov txheej txheem tau ua rau ntawm cov screws los txhim kho lub zog thiab kev tawv ntawm cov screws.
5. Nto Kev Kho Mob: Qhov saum npoo ntawm cov ntsia hlau tuaj yeem kho nrog galvanizing, cov txheej txheej plating, etc. Txhawm rau txhim kho nws corrosion tsis kam thiab cov tsos zoo.
6. Kuaj thiab ntim: Lub screws yog nruj me ntsis raug ntsuas txog qhov loj me, thiab lwm yam, thiab lawv tau ntim khoom tom qab dhau mus xeem.
Qhov saum toj no yog qhov yooj yim txheej txheem ntawm ntsia hlau ntau txheej txheem. Hom sib txawv thiab cov lus qhia tshwj xeeb ntawm cov screws tej zaum yuav txawv. Cov txheej txheem tsim khoom ntawm cov screws yuav tsum tau ua nruj ua raws
Cov txheej txheem txheej txheem thiab cov qauv zoo los xyuas kom muaj lub neej zoo thiab kev pab cuam ntawm screws.