READ & SAVE THIS INSTRUCTIONS BEFORE ASSEMBLY 1.Please separate and identity all the parts,making sure you have all of the parts listed. 2.To avoid any scratch during assembly,please assemble on a soft mat or similar. 3.Please assemble step by step and follow the instruction. 4.Washers must be used. 5.Do not completely fasten each screw and nut until all the screws are properly fixed. 6.