High-temperature resistant C50 square steel sliding door, made from thickened square steel treated with quenching, equipped with high-temperature-specific bearings. It does not get stuck or fail easily in high-temperature environments. It has high hardness, resistance to impact, and stable load-bearing capacity. Suitable for C50 square steel tracks, with smooth pushing and pulling. Ideal for sliding doors in heat treatment workshops, drying rooms, high-temperature factories, and industrial lift doors. Resistant to high temperatures, durable, less prone to deformation, easy to install, and low failure rate during long-term use in high-temperature conditions.
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