Simply attaching the frame, barrow tray, wheel, etc together.  
Very simple assembly, everything just bolts together.  
One-piece welded handle and stand
Heavy duty 90L Galvanized Wheelbarrow
Load Capacity:160kgs
Water Capacity:85L
Sand Capacity:5.5cuft
Body size:LxWxH 1410 x 605 x 595mm
Tray szie:LxWxH 875 x 570 x 280mm
Handle:ɸ32mm x 1.2mm metal tube
Wheel:4.00-8 Pu Foam Wheel
Wheel Tread:Block
Rim:plastic rim with 20mm needle bearings  
Axle:boltness axle Length:128mm