The Infrared Electric Fireplace provides warmth with a realistic flame effect. Compact size is perfect for smaller spaces. It can be used with or without the heater for a relaxing ambiance. Adjustable temperature and flame settings allow you to customize the heat and height of the flames to your preference. You can operate the fireplace with the included remote control for convenience, and a multi-stage timer automatically turns the fireplace off for safety. It comes fully assembled with no venting or plumbing required; only a screwdriver is needed to get your new electric fireplace up and running. Just plug it in and enjoy! Electric Fireplace,Fireplace Insert,Electric Fireplace Insert,Indoor Electric Fireplace,Firebox, Wall Mounted Fireplace Zhongshan Hangsam Electrical Appliance , https://www.zsgrillfireplace.com
General industrial requirements for niobium elements
Mineral name
Ge content, %
Lead zinc ore
0.001
Zinc concentrate
0.01
Coal mine
0.002
Hematite ore
0.008
Copper and silver- rich ore
0.0005~0.002
Spring water
0.0005
Magnesium iron ore
0.001~0.01