Profile: All Springs Kato-Entex Ltd specializes in providing springs. We provide compression springs, tension springs, torsion springs, flat springs, power springs, spiral springs, wire forms, pressings, assemblies and associated components. Compression springs are made from round, square, rectangular, trapezoidal, oval or even special shaped wire cross sections. The shape of the compression spring is mostly parallel sided of nominally constant diameter but is often seen as a conical shape and sometimes barrel or waisted (hourglass) shape. A circlip or retaining ring is a simple locking device coiled or formed from wire or pressed from strip. It is often a simple ring used to compensate for axial play.