Galvanized steel duct can be classified according to cross-sectional shape and material. According to the cross-sectional shape, galvanized air ducts can be divided into various types, such as circular air ducts, rectangular air ducts, flat circular air ducts, etc. Among them, circular air ducts have small resistance, large height dimensions, and complex manufacturing. So the application is mainly based on rectangular air ducts.

鍍鋅鋼板風管廣泛應用于民用及工業領域，比如：高層建筑的地下車庫、賓館、酒店、、醫院、寫字樓、車間廠房、紡織、石油化工、機械制造、儀表、電子、醫藥、煙草、食品以及地鐵、人防等工程的送風、排風、排煙管道。鍍鋅風管通常在連接的時候，兩端總是外接于配件（如彎頭、變徑）。

Galvanized steel sheet air ducts are widely used in civil and industrial fields, such as underground garages, hotels, hotels, shopping malls, hospitals, office buildings, workshops, textile, petrochemical, mechanical manufacturing, instruments, electronics, medicine, tobacco, food, as well as air supply, exhaust, and smoke exhaust pipes for subway, civil air defense, and other engineering projects in high-rise buildings. Galvanized air ducts are usually connected externally to fittings (such as elbows, reducers) at both ends.

鍍鋅鋼板風管成品如何保護？風管加工設備上應覆蓋柔性材料，且不得影響設備操作；進入車間應更換布鞋，禁止在鍍鋅鋼板上踩踏；風管合縫及敲翻邊時使用橡膠錘配合液壓合縫機，不得使用金屬錘；

How to protect finished galvanized steel duct products? The air duct processing equipment should be covered with flexible materials and should not affect equipment operation; Cloth shoes should be replaced when entering the workshop, and stepping on galvanized steel plates is prohibited; When sealing and flipping the air duct, use a rubber hammer in conjunction with a hydraulic sealing machine, and do not use a metal hammer;

風管下料、合縫、裝配法蘭等工序須在柔性地毯上操作，嚴禁風管鍍鋅層與地面直接接觸；風管半成品、成品須整齊放置在方木上，每層不超過1.2m，嚴禁多層堆放造成風管變形；

The cutting, jointing, and flange assembly processes of the air duct must be carried out on flexible carpets, and direct contact between the galvanized layer of the air duct and the ground is strictly prohibited; The semi-finished and finished products of the air duct must be neatly placed on square timber, with each layer not exceeding 1.2m. It is strictly prohibited to stack multiple layers to cause deformation of the air duct;

山東通風管道加工表示風管成品長時間堆放時應用塑料薄膜覆蓋，避免積灰；鍍鋅鋼板應放在寬敞干燥的隔潮木頭墊架上，碼放時按系統編號，整齊、合理，便于裝運。搬運裝卸應輕拿輕放，防止損壞成品。

Shandong ventilation pipeline processing indicates that when finished air ducts are stacked for a long time, they should be covered with plastic film to avoid dust accumulation; Galvanized steel plates should be placed on spacious and dry damp proof wooden pallets, neatly and reasonably numbered according to the system during stacking, for easy shipping. Handling and loading should be handled with care to prevent damage to the finished product.

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