The cold spinning head thickness, selling cold Spinning Head http://www.hebftc.com/ the Phone 0317-8210122 Mobile 13722724665 cold spinning head plant the treatment of similar problems in service inspection of the value of the provisions. The straight edge of the existence of not only the girth would not even for some reference, and to discuss with their peers. Open-peak stress areas, and even to bring it closer to the peak] straight edge short-stress areas. Accordingly, I believe that, to ensure that the head and the cylinder · 48 · petrochemical equipment the 1993 body smoothly assembly and welding premise, head straight edge height does not allow the presence of surface or internal defects (such as surface cold stamping can be less than the standard required value