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。
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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