Weighing Instrument Co., Ltd. Dongguan Heng letter is a mainly wholesale / retail domestic and foreign brands of glass apparatus, laboratory instruments, analytical instruments, chemical reagents, laboratory supplies, cleaning and disinfection products, weighing scales and measuring various types of specialized companies. distribution company for medical, pharmaceutical, electronics, textiles, science and education, food, chemical industry, magnifying glass, abalone mirror, inspection hole mirror, folding magnifier, desktop magnifier, illuminated magnifier, magnifying glass scale, hand-held magnifying glass, 3 times a magnifying glass, magnifying glass 5x, 8x magnifying glass, magnifying glass 10 times, 15 times the magnifying glass, magnifying glass 20 times, 30 times the magnifying glass, magnifying glass 40 times, 50 times the magnifying glass, magnifying glass 60 times, 100 times the magnifying glass, magnifying 200 times, 400 times magnifying glass, magnifying 600 times, 1000 times the magnifying glass, magnifying 150 times, the entity magnifying glass, magnifying glass, stereo, stereo microscope, biological microscope, magnifying glass desk 3 times, 10 times the desktop magnifier, magnifying glass, frame 3 times, 10 times the stand magnifier, Illuminated stand magnifier.