Rubber dumbbell set: made of recycled rubber, with calcium powder added inside.
Advantages: cheap price
Disadvantages:
1. Calcium powder and stone powder are added to the product, the product strength is low and the service life is short!
2. Low-end rubber-coated dumbbells are mostly made of recycled plastic, which has a pungent smell and is easy to deteriorate over time, which is not good for health, often putting fitness plans on hold and even causing boredom.
3. High-quality rubber-coated dumbbells are mostly made of environmentally friendly rubber with less odor.
Due to the fine workmanship now, it is difficult to distinguish between ordinary rubber-coated and high-quality rubber-coated dumbbells.
Electroplating dumbbell set: generally adopts the casting-polishing-electroplating process.
Advantages:
1. The product is bright on the outside and looks good.
2. Small in size, suitable for exercise.
3. Strong structural strength and durable.
Disadvantages:
1. Electroplating uses a lot of strong acid, strong alkali, heavy metal solution, even including toxic and harmful chemicals such as cyanide and chromic anhydride.
These toxic and harmful substances are discharged into the environment through wastewater and waste residue, which is extremely harmful to the natural environment.
2. Some factories use low-cost chemical plating or spray plating, and the coating is very easy to damage.
3. The weight deviation is too large. Generally, the actual weight of 20KG is about 18KG, and various problems such as the lock falling off are endless.









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