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Welcome to Qingdao Zhongzhijia Machinery Co., Ltd.
Tunnel door for maximum ventilation system is designed by our company, made of polystyrene insulation board, aluminum alloy edge, and aluminum alloy rectangular square tube frame for the outer frame.
Overall structure is stable, good sealing performance, good fire performance
With multi-stage opening structure designed, to introduce the cooled air in correct the direction to ensure optimum ventilation
Good thermal insulation value.
No.10 Changxiang Road,Lancun East Industrial Park, Jimo Dist, Qingdao, China
Copyright © 2025 Qingdao Zhongzhijia Animal Husbandry Machinery Co., Ltd.
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8618901103488
+86-18901103488
zgwang@zhongzhijia.cn