Kev cuam tshuam ntawm etching txheej txheem kev ua haujlwm

Etching yog ib txoj kev tseem ceeb hauv kev kho kom zoo nkauj ntawm cov khoom siv hluav taws xob sib xyaw thiab} Qhov kev sib tw ntawm cov hlau sib txawv, nws yog qhov nrawm ntawm etching, thiab shorten lub sij hawm xav tau rau etching {{} Txawm li cas los xij, txo cov kua dej uas tsis muaj zog lossis tshem tawm cov khoom siv hluav taws xob ntau dua thiab tuaj yeem ua rau cov corrosion-resistant txheej ntawm kev sib tshuam ntawm etching thiab tsis etching mus tev tawm lossis yaj, qhov tseeb {} Lub sijhawm ua kom zoo sib xws, thiab lub sijhawm ua kom zoo nkauj ntawm corrosion-resistant number case artle lossis kev tiv thaiv npog ntev dhau, uas tseem muaj cov kev mob tshwm sim saum toj no thiab nws yuav tsum tsis txhob muab rau siab ntev dhau los, feem ntau tsis dhau {{}}}}