Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
이 광택계는 표면의 광택을 측정하는 데 사용됩니다.i gwangtaekgyeun pyomyeonui gwangtaegeul cheugjeonghaneun de sayongdoemnida.This glossmeter is used to measure the gloss of surfaces.