http://www.forrestrace.com/tube-boro/
Where can I find Boro Glass and Tubes for lampworking?
I am looking for boro glass COE 32-33 for bead making and lampworking projects.
www.arrowsprings.com major supplier of lampworking gear near west coast
www.waleapparatus.com same for east coast with more emphasis on scientific lampworking
pulling boro tube from a furnace