There are several points to pay attention to when choosing a manufacturer: first, the scale of the manufacturer is too small, and it is definitely not possible. This kind of machinery and equipment generally choose larger manufacturers; Second, understand the manufacturer's after-sales service policy, and after-sales quality companies can buy with confidence; Third, look at whether the company's products are the latest products on the market, and the old products can no longer meet the needs of use.
The air duct is mainly used to connect the air circulation between the two places and play the role of ventilation. Spiral duct (stainless steel and galvanized sheet) is the most widely used in the market. Spiral duct market is generally divided into three categories according to materials: galvanized spiral duct, stainless steel spiral duct and composite spiral duct.
Among them, stainless steel air duct has the best quality and strong applicability, but the price is higher. The most widely circulated spiral pipe in the market is galvanized. Galvanized spiral duct is basically the characteristic of stainless steel spiral duct, but its price is only two-thirds or even lower than that of stainless steel duct. Composite spiral duct is generally used in places where the external environment is relatively common and the requirements for air ducts are not too high.
Spiral duct is a spiral seam thin-walled pipe made of metal coil, which is round, non-welded, air-tight and water-tight. It is mostly used for air supply and bulk material transportation to replace the traditional white iron pipe (that is, manual biting iron pipe). It is a kind of air duct, and the straight pipe of the whole mechanism does not need manual knocking.