GB / T 5310 yog ib hom boiler raj.

Nws cov khoom sawv cev yog 20g, 20mng, 25mng. Nws yog nruab nrab carbon steel nrog tsawg manganese.

Qhov ntev ntawm lub boiler raj yog muab faib ua ob hom: tsau loj thiab ob chav loj. Tus nqi ntawm txhua lub raj hauv tsev yog xam raws li qhov ntev, thiab tus nqi ntawm txhua lub raj yog xam raws li qhov tseeb qhov hnyav.

Ob chav nplai tuaj yeem muab faib ua peb hom:

Tus kav ntev: siv los kho qhov tshwj xeeb seamless steel yeeb nkab ntawm kev txhawb nqa;

Qhov sib npaug ntawm phab ntsa tuab tshwj xeeb zoo li seamless steel yeeb nkab (sab nraud txoj kab uas hla tsawg dua 32 hli): siv rau cov qauv siv tshuab, cov khoom siv hydraulic nrog qhov siab qhov tseeb thiab zoo nto tiav ntawm precision seamless steel yeeb nkab;

Non-standard seamless steel yeeb nkab (sab nraud txoj kab uas hla ntau dua 32mm los yog puab txoj kab uas hla tsawg tshaj 40mm): Siv rau ntau yam structural qhov chaw, cov cuab yeej thiab mechanical qhov chaw.