Twin tube size: 33x16/22x11/18x9. Length: The longest length we can produce is about 6.5 meter. Quality: Very good, no air line, not air bubble, good verticality, bow and others, we can produce according to customers drawing and we can provide inspection report before delivery. Production method, one step, our factory patent in China. Use for infrared radiation sources, industrial lamps-Infrared short and medium wave emitter.
