Sirt sifati alyuminiy protektor plitasi
(1) Oddiy aniqlik: alyuminiy plastinka yuzasida temir oksidi shkalasining yupqa qatlamiga ruxsat beriladi, va temir oksidi shkalasining tushishi natijasida hosil bo'lgan sirt pürüzlülüğü va balandligi yoki chuqurligi ruxsat etilgan og'ish va boshqa mahalliy nuqsonlardan oshib ketadi.. Insignificant burrs and individual marks whose height does not exceed the height of the pattern are allowed on the pattern. The maximum area of a single defect does not exceed the square of the grain length.
(2) Higher accuracy: The surface of the aluminum plate is allowed to have a thin layer of iron oxide scale and other local defects whose height or depth does not exceed half of the thickness tolerance.