fitness equipment accessories 45 to 40 hollow reducing plastic square tube slide bushing isolation sleeve square tube hollow sleeve bushing

25*25 to 20*20h (wall thickness 1.5-2.0) f50 to f40 (wall thickness 1.5-2.0) f50 to f40 (wall thickness 1.5-2.1) 60*60/50*50 (wall thickness 1.5-2.0) 60*60 to 50*50 (wall thickness 3.0) 75*75 to 60*60 (wall thickness 1.5-2.0) 50*50 to 40*40 (wall thickness 1.6-2.0) 60*60 to 40*40 (wall thickness 2.5-3.0) 60*60 to 40*40 (wall thickness 1.5-2.1) 60*60 to 45*45 (wall thickness 1.5-2.0) 60*60 to 50*50 (wall thickness 1.6-2.0) 50*50 to 40*40 (wall thickness 1.5-2.0) 50*50 to 25h (wall thickness 1.5-2.0) 50*50 to 45*45 (wall thickness 1.5-2.0) 40*60*30*50 height 40 (wall thickness 1.5-2.1) 40*80 to 30*70 (wall thickness 1.5-2.0) 50*100 to 40*80 (wall thickness 2.5-3.0) f40 to f30h: 60 (wall thickness 1.5-2.0) 50 to 40 (wall thickness 1.5-2.0)

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