... extruders to extrude at the same time and produce single layer and multi-layer co-extrude file .The set ... etc as raw material.Main technical parameters: ModelSJLY-1250(Single)SJLY-1250(Multi-layer)Diarmeter of screw×ratio of ... Russia, Ukraine, Armenia, Azerbaijan, Uzbekistan, Kazakhstan, Italy, Romania, Australia, Turkey, Iran, Pakistan, India, Bangladesh, Indonesia, Japan, Vietnam, Mexico, Venezuela, ...