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The flange is mainly welded by submerged arc welding machine. Inner tire wheels are manually welded.

Wheels should be cleaned with a long brush to thoroughly clean the wheels. When cleaning the front wheels, do not reveal the details and clean them all.

Pay attention to brand and ensure quality.

If the shaft rusts and disintegrates without rust and maintenance, the contact surface, bolts and shaft center between the rim and the shaft are easy to rust, and it is difficult to restore in place when the rim is reinstalled.