1. Further processing clear quartz tube 2. U bend, spiral, C shape, and any shapes if you ... same industry. There are 2 kind of sealing, one is sealing the end of the tubes round, and the other ... is flat.No matter what kind of sealing, we can do it well.We can supply ... quartz tube, and so on. And we have further capacity of trim cutting, fire-polishing, pinching, and bending, and so ...