Origin |
China |
*All geometry demensions required, and to be well seales with vessels in variant diameters to ensure good sealing to gas.
*Shorter length and bigger bell diameter in order to ensure the effective flaring area
*The well-selected glass tube material for stem in good sealing by melting with Dumet and vessel, and in steady performance of both electricity and chemistry
*High mechanical intensity for reprocessing after annealing
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