... Absolute beautiful: novel material, reduce its dead weight, folding armrest to save more space; 6, Absolute reliable: the quality ... impact resistance, corrosion resistance, and anti-skidding; C, Armrest: Using SPCC seamless steel tube, thickness is 1.8 to ... the trundles more lubricating, little rolling resistance, and quiet. F, Trundle rubber adopts Japanese formula standard. With natural rubber, ...