... %4.3±0.2%Colored Borosilicate glass tube A.Regular specification of glass tube(O.D.xW.T.):25x4.0mm,32x3 ... ,38x3.2mm,38x4.0mm,44x4.0mm,51x4.0mm,51x4.8mmB.Customized specification of glass tubeO.D.:5mm-300mm,W.T.:0.8mm ... :Colors:14colors Colored Borosilicate glass rod:A:Regular specification of glass rod4mm-42mmB:Customized specification of glass rod3.5mm-46mm(MOQ:5tons)C ...