... the groove - shaped strip of steel Ordinary grooved steel and light steel channel Name:Channel beam, U-steel,channel steel,Standard:GB, ASTM, API, ... Technique:Size51*25*3---305*80*13mmLength:6---12mShape:U ChannelApplication:building structure, vehiclesCountry of Origin:China(mainland)Package ... Shape: U Channel 3.Standard:ASTM,EN,JIS,GB 4.Thickness:8-200mm 5.steel in stock supply S235JR U-steel products ...