Abstract: The PIC tube is made of long,internally-deburred electrical weld tube or seamless steel tube by means of induction heating,stretch-reducing and hot-coiling.Thanks to its characteristics such as small size range,broad length range,structural uniformity and appropriate plasticity,the product can meet requirements for certain special applications.Briefly described in the article are such main aspects of the tubular product as characterisitics,size range,chemical composition as well as application scope.