內充氣設備-模具:采用分流錐式結構,此結構減小擠出壓力,塑化均勻,高速擠出成型穩定,管材各項指標均達到我國標準。管材壁厚均勻,內外平滑,無凹凸或疤痕,定型更穩定,尺寸更準確. Die: adopt taper structure, reduce extrusion pressure, uniform plasticization, high speed and stable extrusion. All indexes of the pipeline meet the national standards. The pipe wall thickness is even, the inside and outside are smooth, without bumps and scars, and the installation is more stable and the size