<style id="lruhl"><strong id="lruhl"><ruby id="lruhl"></ruby></strong></style>

<form id="lruhl"><font id="lruhl"><s id="lruhl"></s></font></form>

Lesson 32　Plastic Foam Molding

所屬欄目：聚合物科學與工程

Foamedplastics(alsocalledexpandedorcellularplastics)aremadebyaddingairorgastoaplasticresintoformasponge-likematerial.Moderndevelopmentsinplasticfoammoldinghaveplacedthisamongthemajorprocessingtechniquesoftheindustry.Resinscommonlyusedintheproductionofplas ......（本文共 8972 字） [閱讀本文] >>

推薦內(nèi)容

科普

<td id="y934l"><th id="y934l"><rp id="y934l"></rp></th></td>

<object id="y934l"><track id="y934l"></track></object>

<menuitem id="y934l"><strong id="y934l"><i id="y934l"></i></strong></menuitem>

<strong id="y934l"></strong><s id="y934l"></s>

<center id="y934l"><source id="y934l"><abbr id="y934l"></abbr></source></center>