T series tube is extruded tube , TT series tube is carbon fiber reinforced tube , TB series tube is baked and impregnated tube , TS series is graphitized and impregnated tube.

• 系列管材为挤出管；TT系列管材为碳纤维加强管；TB系列管材为焙烧浸渍管；TS系列管材为石墨化浸渍管.