Joho Steel Co., Ltd

Introducing JOHO's GOST Standard Steel Plate Flange with rust-proof oil protected surface, available in various sizes from 1/2” to 48” and classes from 150 to 2500, suitable for petroleum, chemical, power, gas, metallurgy, shipbuilding, and construction applications, with certifications of ISO 9001 and origin from China, offering welding, threaded, slip-on, and lap joint connections, and various surface finishes including rust-proof oil, black paint, yellow paint, hot galvanized, and cold galvanized, welcome to visit our website!