张家港通风管道中的弯头是什么？它有什么作用？

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张家港三环通风设备制造有限公司是一家专业通风系统工程供应商，公司专注于通风工程、排烟系统、钣金加工、负压风机、中央空调通风管道等项目的规划、改造、设计、安装、维护提供整套系统服务，公司由从事多年通风工程技术团队组建。 凭借专业的技术团队为客户改善良好的工作环境提供定制化方案。