In 1998 , ruyi s advanced products such as " elastic woolen spinning fabric " , " machine - washable woolen fabric " , and " comfortable woolen spinning fabric " , etc passed provincial technique appraisal and filled the gaps in domestic fabric fields . in 1999 , " bicomponent woolen spinning " series and " non - shrink fine - spinning fabric " passed the state - level technical appraisal , and filled the gap on the domestic market 98年, "弹性毛织物" 、 "机可洗毛织物" 、 "舒适毛织物"等项目通过省级技术鉴定,填补了国内空白, 99年, "双组份毛精纺系列产品"和"精纺面料防缩产品"通过国家级技术鉴定,填补了国内空白。