Cov rivets rub suav nrog txhuas, hlau, thiab hlau tsis xeb. Cov rivets dig muag semi-stainless hlau yog dab tsi?

Lub qhov muag tsis pom kev semi-stainless hlau yog tias lub plhaub ntsia hlau yog stainless hlau thiab tus pas ntsia hlau yog hlau, uas hu ua semi-stainless hlau qhov muag tsis pom kev rivet.