纺丝工艺 spinning process ; spinning technics ; fiber spinning process ; spinning methods

纺丝工艺流程 spinning process flow

罐式纺丝工程 pot spinning process

纺丝消光工艺 spun delustering

短丝无纺土工布 Short Nonwoven Geotextile

绢纺和丝织加工 processing of silk waste and silk