high quality up and down ball bearing dining table slide runner 1,Colour: silvery white,black 2,Load capacity: ... high quality up and down ball bearing dining table slide runner Model:JY-004B1,Size:Any size is available2,Load ... 1.5mm-2 mm cold boar4,Colour:silvery white,black5,Slide cycling test: 50000 times6,Surface: 48 hours salt-spray ... high quality up and down ball bearing dining table slide runner