Yixing Jingke Optical Instrument Co., Ltd. is the largest colorimetric dish manufacturer in China, with nearly 40 years of production and manufacturing experience. Its products have passed ISO quality system certification and are in a leading position in the industry. The produced black wall micro cap colorimetric dish has high mechanical strength, strong adaptability to temperature changes, very strong bonding, and can withstand several atmospheres of internal pressure. It has extremely precise optical processing technology, and the optical performance of the transparent surface is very good. The black wall micro capped colorimetric dish is made of German imported quartz glass, optical glass, or infrared quartz glass to ensure no bubbles, stripes, scratches, or pairing.