Φ23 * 1.5 seamless steel yeeb nkab. Tom qab cov khoom tiav lawm, tom qab qhov kev sim hydraulic, qhov rwb thaiv tsev tsis kam ntawm ob lub tshuab hluav taws xob cua sov kav tau poob qis, uas tsis tso cai los ntawm kev ua haujlwm.
Peb tau tshawb nrhiav daim npav nrhiav cov khoom tshiab, thiab cov ntaub ntawv soj ntsuam ntawm cov khoom siv raw nkag mus rau hauv qhov chaw yog txhua yam. Yuav kom nrhiav tau qhov laj thawj, peb tau txiav thiab txiav cov hluav taws xob cua sov lub raj ntu ntawm ntu, thiab pom cov seem uas tsis muaj cov rwb thaiv tsev tsis zoo, thiab saib xyuas qhov chaw nrog lub iav magnifying, thiab tsis muaj qhov txawv txav. Tom qab ntawd qhov saum npoo ntawm cov yeeb nkab steel tau polished los ntawm lub tshuab dhos los ntawm 0.5 hli, thiab tsis muaj qhov txawv txav; Nws tau pom tias muaj qhov tawg ntawm sab hauv ntawm cov yeeb nkab steel. Qhov no yog vim hais tias tus neeg muag khoom muaj cov kab nrib pleb loj ntawm sab hauv thaum kos cov yeeb nkab steel, ua rau muaj qhov tawg ntawm capillary ntawm tag nrho cov txheej txheem. Qhov no capillary tawg tsis tuaj yeem pom ntawm qhov muag liab qab nyob rau lub sijhawm luv luv, thiab tuaj yeem pom tsuas yog hauv qab dej siab. Los ntawm kev sim ntau lawm, peb tau paub ntxiv txog qhov tseem ceeb ntawm kev sim hydraulic, thiab cov khoom lag luam hauv lub Hoobkas yuav tsum tau soj ntsuam tag nrho kom tsis txhob tshwm sim.