Lub ntsiab lus ntawm PS phaj yog pre-sensitized phaj siv hauv offset printing. Nyob rau hauv offset printing, cov duab yuav tsum tau luam tawm los ntawm ib tug coated txhuas ntawv, muab tso rau ib ncig ntawm lub cylinder luam ntawv. Cov txhuas tau kho kom nws qhov chaw yog hydrophilic (tsim dej), thaum tsim PS phaj co...
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