Two porcelain galvanized plastic spray guardrail is in the galvanized process on the basis of the increase of plastic spray process, is to color the guardrail board. Such as blue, grass green, white and yellow.
The plastic corrugated roof sheet making machine by following parts: 1, Two or three conical screw extruders, such as 65/132,80/156.92/188, has different layers and capacity for roofing tile sheet.2, ASA/PMMA co extrusion layer, made from 50/30 single sc