Our factory produces glass instruments and glass crafts with more than twenty years experience. Quality of products are stable.Products series: glass instruments, glass crafts, Glass tube, glass rodGlass vessel: flask, receptacles, glass graduate, glass ground jointGlass crafts: candle holder, oil lamp, lamp shade, lamp pipe, vase, love thermometer, X’mas balls, small bells, Angel, smoking pipe, bongs, Arab bongs, sandglass, sand timer hourglass, pyrex tea pot, tea cup, tea tray Borosilicate glass tube: outer diameter3—300mm,wall thickness 0.6—1mmOD of glass rod:3—40mm, colored rod 3—20mm Welcome to discuss business.