Flange in the oil and industry above the application is very common, we can see the use of butt welding flange in various categories of industry. However, the use of welding flange is the need to have a lot of attention, these attention is the need to pay attention to. what are the fundamental co

What is a loose flange, where is the loose flange used and what pipe fittings? The loose flange is the movable flange piece, which is generally matched with the water supply and drainage fittings (the most common on the expansion joint). When the factory leaves the factory, there is a flange at e