Ralph Rossdeutscher, president of Natura, a Cambridge, Ont., manufacturer of natural sleep products, says there are two types of latex pillows: foam core and granulated .
Ralph Rossdeutscher一个自然水面产品制造商，说道有两种乳胶枕：泡沫芯的和粒状芯的。
Ralph Rossdeutscher, president of Natura, a Cambridge, Ont., manufacturer of natural sleep products, says there are two types of latex pillows: foam core and granulated .
Ralph Rossdeutscher一个自然水面产品制造商，说道有两种乳胶枕：泡沫芯的和粒状芯的。
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