The comparison is based on the coating of barbells: The black oxidation is also called as bluening, which is a passivation reaction. A dense oxide film on the surface of iron, which is isolated from iron and acts as a rust preventive. Black zinc is a method of electroplating on the surface of barbel...
The frequency depends on humidity, climate, etc. Process as below: Remove the chalk in the gap of knurl by steel brush; Paint with a light layer of oil; Brush again to remove the oxide layer; Dry and clean with microfiber cloth;
The weight of a hard chrome barbell depends on the material, length, dia, etc Basically from 7-24kg, please consult from us before placing order. Related Products: 1) Hard Chrome Barbell 2) 7′ Black Chrome Olympic Bar 3) EZ Curl Bar
Steel Macebell is a bit longer than Steel Clubs, that arises different leverage factors; 2. Clubbell could have much more exercised than macebell; 3. Clubbell is not easy to take during travel, macebell is; 4. Clubbell is a bit more expensive than macebell;