摘要
International standard for welding symbols updated Welding symbols are a necessary element of engineering,providing a common Language for all involved in fabrication,from designers to the shop floor.The internationally agreed standard for these symbols has been updated.ISO 2553,Welding and allied processes-Symbolic representation on drawings-Welded joints,combines both systems from Europe and from Pacific Rim countries that are the most widely used in technical drawings around the world.It shows,on technical drawings,how and where welds are to be made,including information such as geometry,manufacture,quality and testing of the welds.It provides for easy comparison between both systems,where needed.