Vim tias tag nrho lub mandrel raug rub tawm tom qab lub taub hau ob sab countersunk dig muag rivet raug riveted, cov khoom siv ntawm lub mandrel yuav tsis cuam tshuam rau qhov corrosion tsis kam ntawm cov hlau stainless ob sab countersunk dig muag rivet. Ntxiv mus, stainless hlau kim dua li hlau. Txhawm rau kom txuag tau nqi, lub hauv paus ntsia hlau yog ua los ntawm hlau.
Lub sijhawm tshaj tawm: Plaub Hlis-14-2022