The device is a pre-molded polymer foam liner that is placed inside the bathtub or shower unit and that is then removed upon the completion of the construction.
该设备是一种预成型聚合物泡沫衬垫是内部的浴缸或淋浴放在单位，然后根据建造完成删除。
The gauge of the needle may be determined by the color of both the base and the housing, which are molded as a unitary single unit.
针头的规格可以通过模制成单体的单个单元的 基座和外壳的颜色来判断。
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