office chair gas lift 1 suitable for feet and back of massage chairs 2 Suitable for various chairs 3 competitive price office chair gas spring,gas liftSpecification : JKQ28/50-L-80-N (JL4004)Force : unfixedTotal length : unfixedStroke :80mm (unfixed)Cylinder diameter :50mm (unfixed)Rod diameter :28mm (unfixed)We can design them which you want for you. office chair gas lift(manufacturer)
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