Mini Tempered Round Glass φ20-60mm | 300℃ Heat-Resistant Sight Glass for Instruments & Sensors

Elevate your compact devices with our mini tempered round glass, sized from φ20 to 60mm. Engineered for vertical integration, this crystal-clear glass disc offers a pristine viewing surface with a refined, polished finish that enhances light and shadow detail. Capable of withstanding continuous operating temperatures up to 300℃, it delivers exceptional thermal shock resistance. With high light transmittance and a scratch-resistant surface, this small circular glass is the ideal protective window for instrument panels, sensor housings, and miniature equipment, ensuring reliable performance and visual clarity in tight spaces.