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。
Suse latex foam pad is the back of conventional products.
素色垫背面发泡乳胶是常规产品。
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