1. Cov cim lag luam thiab luam ntawv ntawm cov raj zoo yog tus qauv.

2. Cov muaj pes tsawg leeg ntawm cov hlau zoo sib xws, lub tonnage ntawm lub tshuab txias shear yog siab, thiab lub ntsej muag kawg ntawm lub taub hau txiav yog du thiab tsis tu ncua. Txawm li cas los xij, vim cov ntaub ntawv tsis zoo, lub ntsej muag kawg ntawm lub taub hau ntawm cov hlau tsis zoo feem ntau muaj qhov pom ntawm cov nqaij poob, uas yog, nws tsis sib xws thiab tsis muaj xim hlau. Thiab vim tias cov khoom ntawm cov tuam txhab ntoo tsis zoo muaj lub taub hau tsawg dua, pob ntseg loj yuav tshwm sim ntawm lub taub hau thiab tus Tsov tus tw.

3. Cov kav hlau tsis zoo feem ntau muaj qhov pitted ntawm lawv qhov chaw. Pockmarks yog qhov tsis sib xws thiab tsis sib xws ntawm qhov chaw ntawm cov hlau uas tshwm sim los ntawm qhov hnyav hnyav thiab tsim kua muag ntawm cov dov grooves. Vim tias qhov qis qis qis qis steel yeeb nkab manufacturers nrhiav cov txiaj ntsig, groove dov feem ntau zoo li kim tshaj plaws.

4. Qhov saum npoo ntawm cov kav hlau tsis zoo yog qhov ua rau caws pliav.

5. Qhov saum npoo ntawm cov ntoo tsis zoo yog qhov ua rau tawg vim nws cov khoom siv raw yog adobe, uas muaj ntau qhov pores. Lub adobe tau raug thermal stress thaum lub sij hawm txias, ua rau tawg, thiab cov kab nrib pleb tshwm tom qab dov.

6. Cov kav dej tuab tuab-walled kauv hlau yog yooj yim rau khawb. Yog vim li cas yog vim li cas cov khoom siv kauv steel yeeb nkab tsis zoo muaj cov cuab yeej siv tsis zoo thiab ua rau burrs thiab khawb ntawm qhov chaw ntawm cov hlau. Sib sib zog nqus khawb rau lub zog ntawm cov hlau ntog.

7. Cov kav dej tsis zoo ntawm cov kav hlau tsis muaj hlau tsis zoo thiab muaj lub teeb liab lossis xim zoo sib xws rau npua hlau.

8. Rau cov xov loj nrog txoj kab uas hla ntawm 16 los yog ntau tshaj rau triple kauv steel kav, qhov kev ncua deb ntawm ob lub cim lag luam yog siab dua IM.

9. Cov kab ntev ntev ntawm cov hlau tsis huv yog feem ntau wavy.

10. Cov chaw tsim khoom ntawm cov kav hlau tsis zoo yog cov lax hauv ntim vim lawv tsis muaj tsheb thauj khoom. oval sab

11. Cov kab nruab nrab ntawm cov kav dej tsis zoo ntawm cov kav hlau tsis zoo yog nyias thiab qis thiab feem ntau zoo li tsis muaj dej. Yog vim li cas yog vim li cas thiaj li ua tiav qhov tsis zoo siab ntev, cov chaw tsim khoom txo qis hauv thawj ob peb kis ntawm cov khoom loj heev, cov hlau zoo li me dhau, thiab lub qhov qauv tsis tau sau.

12. Ntu ntu ntawm cov kav hlau tsis zoo yog oval. Yog vim li cas yog vim li cas thiaj li txuag tau cov ntaub ntawv, qhov txo qis ntawm thawj ob kis ntawm cov menyuam ua tiav yog qhov loj heev. Lub zog ntawm hom rebar no txo ​​qis heev, thiab nws tsis ua raws li cov qauv ntawm cov rebar. qauv.

13. Cov kav hlau tsis huv muaj ntau yam impurities, qhov ntom ntawm cov hlau yog me me, thiab qhov siab ntev yog qhov hnyav, yog li nws tuaj yeem ntsuas thiab ntsuas yam tsis muaj vernier caliper.

14. Sab hauv txoj kab uas hla ntawm inferior kauv steel kav fluctuates heev.

15. Cov kav hlau tsis zoo yog qhov yooj yim rau folding. Folds yog ntau txoj kab sib dhos tsim rau ntawm qhov chaw ntawm kauv steel kav. Qhov kev tsis zoo no feem ntau khiav thoob plaws qhov kev taw qhia longitudinal ntawm cov khoom. Yog vim li cas rau folding yog tias inferior manufacturers nrhiav kev ua haujlwm siab thiab txo qis heev, ua rau pob ntseg. Folding tshwm sim thaum lub sij hawm dov txheej txheem tom ntej. Cov khoom folded yuav tawg tom qab khoov, thiab lub zog ntawm cov hlau raug txo qis heev.