In fact, it is not difficult to judge whether the water tank rack is more slippery.

1. If it is a plastic water tank frame, you can check the bolt removal, water tank frame quality, label, production date, etc. , but a single evidence cannot prove whether it is replaced. For example, during engine maintenance, it is sometimes necessary to remove the water tank frame.

2, made of iron, and welded with the side beam, which is more beautiful, as long as you check the welding quality.