... or Spiral welded pipes, etc.StandardBS,ASTM,DIN,JSBends seriesHeating exchanger, coils, Return bends, U style, Serpentine tube and other special ... type bendingScope of bendsRectangle tube(15*15 to 400*400mm), Round tube: Radius ... /T,30% payment in advance.or L/C At SightPlace of OriginShanghai, China Stainless Steel Heat Exchanger Coil Tube Bending