... 3)Standard:ASME,ANSI,BS,etc. 4)material:carbon steel BG Carbon steel 180 Degree Bend sizeSeamless:from 1/2" ... member of first – grade supply network of State Power Corporation and China National Petroleum Corporation.We are also ... pallets,or as for clients'requirementsapplicationPetroleum, chemical, machinery, electric power, shipbuilding, papermaking, construction, etcSpecial design available as the ...