Add the appropriate place once, on cooling forming or film-forming, becoming a very small contraction of the solid elastomer.
一经放入适当位置,就冷却成型或成膜,成为收缩性很小的坚固的弹性体。
Add the appropriate place once, on cooling forming or film-forming, becoming a very small contraction of the solid elastomer.
一经放入适当位置,就冷却成型或成膜,成为收缩性很小的坚固的弹性体。
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