Kev ntxuav cov ntsia hlau

Yuav ua li cas rau roj rivets? Rivet deoiling feem ntau yog siv rau hauv tus neeg sawv cev tshem tawm roj, tus neeg sawv cev no hauv kev tshem tawm roj tib lub sijhawm kuj tuaj yeem ua si cov khoom siv xeb tsis zoo,

1. Thiourea: 10 oxalic acid; 150 pingjia: 10 dej: 1000

2. Txoj kev tsim khoom thiab kev siv: raws li cov mis tom qab ntsuas, ntxiv cov khoom siv rau hauv dej, sib tov tag nrho, tuaj yeem siv tom qab yaj lossis sib tov sib npaug, thaum siv, cov rivet txhuas, tooj liab rivets, stainless hlau rivets, rau hauv cov tshuaj kua, hauv 90 degrees kub rau ob peb feeb thiab do cov kua, tshem tawm yaug tom qab ob peb feeb, polishing, ziab