The source manufacturers of parallel flange channel have different materials, from low-pressure asbestos mats, high-pressure asbestos mats to metal mats.
1. Divide carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon leaching, ppr, etc. by material.
2. It can be divided into forged flanges, cast flanges, spliced flanges, cut flanges, coiled flanges (super large models) according to the production method.
3. According to the manufacturing standard,parallel flange channel can be divided into national standard (Ministry of Chemical Industry standard, Petroleum standard, Electricity standard, Ministry of Machinery standard, Marine standard), American standard, German standard, Japanese standard, Russian standard, etc.