a heated adapter tube carries the melted plastic from the extruded head to the opening in the center-fed die.
一个加热调适管把来自挤压头的热容胶引入到中心馈电的模具开口处。
this fisheye attachment screws onto the filter adapter tube via a 52mm filter thread and works very well with the included 12.5x macro lens attachment allowing superior close-up photography.