Crossing the street bridge solves the problem of people's travel, but the weather is always fickle. There is no place on the overpass that can be shaded and rainproof. If you install a…
Read morePC (polycarbonate) has high mechanical strength and high impact toughness and high conversion temperature, as well as heat resistance and deformation resistance. The operating temperature ranges from minus 50 degrees to 125 degrees.…
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