0270b-10 single split (universal wheel) 0270b-11 single split +1 layer folding (universal wheel) 0270b-12 single split +2-layer folding (universal wheel) 0270b-13 single split +3-layer folding (universal wheel) 0270b-14 single split +4-layer folding (universal wheel) 0270 b- -20 double split (universal wheel) 0270b-21 double split +1 layer folding (universal wheel) 0270b-22 double split +2-layer folding (universal wheel) 0270b-1 folding box single layer (ordinary wheel) 0270b -- 2 folding box two layers (ordinary wheel + universal wheel) 0270b -- 3 folding box three layers (ordinary wheel + universal wheel) 0270b -- 4 folding box four layers (ordinary wheel + universal wheel) 0270b -- 5 folding box five layers (ordinary wheel + universal wheel) 0270b -- 6 folding box six layers (ordinary wheel + universal wheel)

storage box