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1.For office chairs,
inner pipes of gas springs are used to adjust seating height.
2.only the standard sizes are shown on the picture,
and other sizes are also accepted.
3.And we have got the certificate of TUV,
LGA and SGS ,BIFMA
4.Packing: 40pcs/carton
Inner Pipe of Gas Spring&outer Pipe of gas spring & plastic part of gas spring
