Curved ducts of PP and PP/SGF were molded by vacuum traction 3D extrusion blow molding machine.It was found that wall thickness of the curved ducts of PP/SGF was uniformly and thin.

• 通过“真空牵拉式三维吹塑设备”成型弯管，PP/SGF弯管比PP弯管在沿轴向方向和周向的壁厚更薄、更均匀。