A pen cover durability testing machine is a device used to test the fatigue performance of pen sleeves. It is commonly used to test the fatigue performance of writing tools such as pens, ballpoint pens, and mechanical pencils.
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The stapler fatigue testing machine is a testing device used to assess the durability of staplers. It simulates the use of a stapler to test its life under these conditions. By using a stapler fatigue life tester, manufacturers can better understand the performance of their staplers and provide longer-lasting products to consumers.
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An Eyeglasses Frame Endurance Tester is a device used to test the strength and durability of eyeglass frames. By subjecting the frames to mechanical operations such as twisting, stretching, and bending under simulated human use conditions, the tester evaluates the frames' ability to withstand these loads and assesses their quality.
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Eyewear testing includes eyeglasses lens testing as well as glasses frame testing. These tests are typically done before glasses leave the factory: frame deformation; dimensional stability at high temperatures; resistance to perspiration; bridge deformation; frame endurance test; ignition test; frame measurements and dimensional tolerances; check markings; lens retention; instructions and warnings on packaging; and nickel testing (metals only).
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The strength of the hinges, nose bridge and other welded joints of the glasses are evaluated by the eyeglasses frame tensile tester. If they do not reach the standard and break off, the glasses are unqualified and need to be discarded and redone. Qualified eyeglass frames need to be guaranteed to be safe to wear for 2 years or more.
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Eyeglasses Perspiration Corrosion Tester is to detect whether the eyeglass frame in the simulation of sweat corrosion, whether corrosion points, discoloration, rusting, peeling or peeling of the coating and other phenomena.
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Spectacle inspection content includes a.Eyeglass lenses b. Top focus deviation c. Lens surface quality d. Optical center horizontal distance deviation e. Optical center horizontal flat side deviation f. Optical center vertical mutual difference g. Durability of eyeglass frames
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The Quality Inspection Center for Eyewear Products will use eyeglasses testing equipment to test all of the prescription eyewear, sunglasses, presbyopes and frames, personal protective eyewear, swimming goggles and other products on the market, covering all national standards and some international standards related to the inspection of eyewear products, such as top focus, refractive index, abrasion resistance, light transmission, harmful elements, adhesion, and folding resistance of frames.
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