aluminium alloy sections meaning in English

铝合金型材

Specification for aluminium alloy sections for structural purposes
结构用铝合金型材规范
It is made of high quality aluminium alloy section , convenient on adjusting torque of roller , equipped with unique self - locking device , large rolling picture , suitable for long and thick fabric picture
优质铝合金材质，可方便调节滚筒的扭力，具有独特的自锁装，收卷画面空间大，更适用长、厚材质画面展示。