dear sir/madam,We are the professional manufactuer of glass pipe and glass tube.There are kinds of specifications and on offer:dia: 37-70mm thickness: 1.55-1.95 length: 1650-2150mm.dia: 10-42mm length: 1400mmIf you are interesting in our products,pls feel free to contact us. We would like to have long-term cooperations with you in the near future.