Aluminium profiles tsim los ntawm extrusion muaj tsawg hardness ua ntej kev laus thiab tsis tuaj yeem siv los ua cov khoom tiav. Yog li ntawd, feem ntau hais lus, lawv yuav tsum muaj hnub nyoog kom lawv muaj zog.
Sandblasting
Tom qab extrusion molding, muaj txhuas profiles yuav pom tseeb stretch marks rau ntawm qhov chaw, thiab cov nto micropores yuav loj thiab kuj ntxhib, yog li ntawd lawv yuav tsum tau sandblasted.
