
<p>Silk fibroin solution is prepared from natural mulberry silk as raw material through a series of purification processes.</p>
<p>Silk fibroin solution is prepared from natural mulberry silk as raw material through a series of purification processes.</p>

<p><span style="font-family: 微软雅黑;font-size: 14px"><span style="font-family:微软雅黑">White or light yellow powder</span></span></p><p><br/></p>
<p><span style="font-family: 微软雅黑;font-size: 14px"><span style="font-family:微软雅黑">White or light yellow powder</span></span></p><p><br/></p>

<p><span style="font-family: 微软雅黑;font-size: 14px"><span style="font-family:微软雅黑">White or light yellow powder</span></span></p><p><br/></p>
<p><span style="font-family: 微软雅黑;font-size: 14px"><span style="font-family:微软雅黑">White or light yellow powder</span></span></p><p><br/></p>
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