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Precision Measurement Tool: The spherometer is designed for accurately measuring the radius of curvature of curved surfaces such as lenses and mirrors
this model is durable and long-lasting
Compact waterproof design ensures durability in challenging environments
and gingivitis when gargled in the mouth
Ferrous Sulphate Heptahydrate | 98.5% Extra Pure | 250g Precision Measurement Tool: The spherometerSuperior Purity: This Ferrous Sulphate Heptahydrate (CAS No. 7782 63 0) is of extra pure grade with a minimum purity of 98. 5%, ensuring high quality and reliability in various applications. Precise Specifications: The product meets stringent specifications with clear limits for impurities including Chloride (Cl), Heavy metal (as Pb), Arsenic (As), Lead (Pb), Iron (III) salts (as Fe), Copper (Cu), Manganese (Mn), Mercury (Hg), and Zinc (Zn), ensuring
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