Except for the standard tubing nose, the spiral pipe distribution nose-streaming which provides large mobile space, ensures that the melt has sufficient duration in the line. Low melting temperatures of the line lowers the internal stress and smooths the inner and outer surface of the tubing. It is the optimal design for a Carbon coil production line. Besides that, the line can apply to all the extruded polyolefin materials because of its High flexibility. Two or three story Screw enhancement tube with different specifications and uses can be squeezed out form the line. At the entrance of spiral copper fixed-Diameter Jacket is equipped pre-cooling and powerful vacuum drawing devices, which can ensure that the tubing can be extruded at a high-speed. Specially designed spray brings efficient Spray and cooling. And the line is adjusted by Longitudinal movement generator, so it can achieve the three-dimensional adjustment from four directions(up and down, left and right). The box of line is produced by the stainless steel. High efficient pumps and special sprinkler head cause efficient cooling spray.