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Manual PP&PET strapping tool

Tin packaged with rust

by:Hongmei     2020-07-19
Iron straps rusty reason: 1, indoor air humidity is high; 2, did not dry iron straps and library; 3, tin packaging with a layer of water film condensation on the surface, when the air moisture content of 60% or within 85 ~ 95%, and PH< 6, the corrosion reaction is more intense. When the water temperature as high as 70 ℃, its fastest of corrosion on the iron straps.
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