How to fix the handle of the folding shopping cart if it is stuck?

The jam caused by rust can be loosened by spraying rust remover.

If the blockage is caused by foreign objects, it needs to be cleaned.

Trolley is mainly composed of brackets, casters and bearings. Choosing different materials for folding trolleys will have different advantages and disadvantages. Stainless steel folding trolley refers to a luggage trolley whose whole body is basically made of stainless steel. The advantages of stainless steel are high strength, strong corrosion resistance and long service life, but the disadvantage is heavy weight. In order to reduce the weight, only the thickness of the steel tube of its own structure is reduced, and the bearing capacity is indirectly sacrificed.