发明授权
EP0007286B1 A method for the continuous extrusion and blowing of thin films of plastics material, in particular rigid PVC 失效
连续挤压和膨胀塑料材料薄膜,特殊刚性PVC的方法

A method for the continuous extrusion and blowing of thin films of plastics material, in particular rigid PVC
信息查询
0/0