The produced barium sulfide enters the leacher, and the temperature is controlled above 65°C to obtain a barium sulfide content of 70%, and then enters the clarification barrel, add zinc sulfate for reaction after clarification, control the zinc sulfate content to be greater than 28%, pH=8~9, and obtain a mixture of barium sulfate and zinc sulfide with a density of 1.296~1.357 g/cm3.
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2025-08-16 03:53
1999
However, TiO2 has the ability to absorb UV radiation and convert it into heat, preventing the degradation of the plastic material However, TiO2 has the ability to absorb UV radiation and convert it into heat, preventing the degradation of the plastic material
The upper part of the boot is made from a breathable material that allows air to circulate, keeping your child's feet dry and comfortable even in wet weather The upper part of the boot is made from a breathable material that allows air to circulate, keeping your child's feet dry and comfortable even in wet weather
The rugged outsoles provide excellent traction on uneven terrain, while the waterproof construction keeps your feet dry and comfortable in wet conditions The rugged outsoles provide excellent traction on uneven terrain, while the waterproof construction keeps your feet dry and comfortable in wet conditions
These materials will keep you dry even in the wettest conditions These materials will keep you dry even in the wettest conditions
，。Moreover, they provide a good level of grip, although not quite matching the friction of felt，。Moreover, they provide a good level of grip, although not quite matching the friction of felt
Moreover, the waterproof nature of rubber keeps feet dry and comfortable, even in the wettest conditions Moreover, the waterproof nature of rubber keeps feet dry and comfortable, even in the wettest conditions
From classic black to vibrant patterns, there is a pair of insulated waterproof rain boots for everyone From classic black to vibrant patterns, there is a pair of insulated waterproof rain boots for everyone