知识贝壳
知识贝壳
所属栏目：聚合物科学与工程
Foamedplastics(alsocalledexpandedorcellularplastics)aremadebyaddingairorgastoaplasticresintoformasponge-likematerial.Moderndevelopmentsinplasticfoammoldinghaveplacedthisamongthemajorprocessingtechniquesoftheindustry.Resinscommonlyusedintheproductionofplas ......（本文共 8972 字 ） [阅读本文] >>