新万博软件2018_万博体育与球迷贺新年_万博赞助水晶宫队

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Charcoal Machine Series
· Hammer Mill
· Activated Carbon Equipment
· Straw Crusher
· Sawdust Carbonization Furnace
· Bullen Carbonization Furnace
· Wood Grinder
· Gasify Continuous Carbonization Furnace
· Automatic Carbonization Furnace
· Double Inlet Wood Sawdust Crusher
· Universal Grinder
· Horizontal Drying and Carbonization All-in-one Machine
· Coconut Shell Carbonization Furnace
Areated block series
· Spreader
· Blender
· Cutting machine
· Casting machine
· Slurry metering system
· Aerated concrete technological process
· Autoclaved aerated concrete equipment
· Template|Side panels|Steam curing machine
Crushing Series
· Heavy Hammer Crusher
· Jaw Crusher
· Roll Crusher
· Impact Crusher
· Impact Crusher · Cone Crusher
· Composite Energy-saving Crusher
· Vertical Composite Crusher
· Hammer Crusher
Grinding Series
· Mill
· Energy-saving Ball Mill
· Ball Tube Mill
· Cement Ball Mill
· Ceramic Ball Mill
· Steel Ball Coal Mill
· Rod Milling Sand-maker
· Wet Pan Mill
Magnetic series
· Permanent Magnet Drum Separator
· Dry Magnetic Separator
· Sand Separator
· Wet Magnetic Separator
· Tailings Recycling Machines
· High Gradient Magnetic Separator
Washing equipment series
· BF Type Flotation
· BS-K Type Flotation
· JJF Series Flotation
· XJM Type Flotation
· High Weir Spiral Classifier
· Spiral Chute
· Shake
· Spiral Washing Machine
Graded series of screening
· High Frequency Sieve
· Circular Vibrating Screen
· Linear Vibrating Screen
Beneficiation Aids Series
· Rotary Drum Dryer
· Indirect Heat Dryer
· Efficient Thickener
Dressing aids series
· Chute Feeder
· Vibrating Feeder
· Bucket Elevator
· Mixing Barrel
· Conveyer Belt
· Pendulum Feeder
· Disc Type Feeder
· Feeder
Series Production Line Configuration Series
· stone production line
Beneficiation Production Line Equipment
 



Fineness Of Gold


The purity of gold and its products is known as "pure" or "fineness”

    BC 200 years ago, Greek mathematician Archimedes was worried to determine whether a crown made of pure gold. In his bathtub he was discovered later known as the "Archimedes proportion of" Law: Objects immersed in the liquid upward by buoyancy; buoyancy equal to the size of its weight of liquid arranged. By this way the question is solved. How to express the purity of gold?

1.With "k gold," said the purity of gold

    The national standard GB11887-89 provides that every open (in English carat, German abbreviation for karat, often writing "k") to 4.166 percent gold content, so the gold Kaijin were (in brackets for the National Standards):

    8k=8*4.166%=33.328% (333‰)

    9k=9*4.166%=37.494% (375‰)

    10k=10*4.166%=41.660%(417‰)

    12k=12*4.166%=49.992%(500‰)

    14k=14*4.166%=58.324%(583‰)

    18k=18*4.166%=74.998%(750‰)

    20k=20*4.166%=83.320%(833‰)

    21k=21*4.166%=87.486%(875‰)

    22k=22*4.166%=91.652%(916‰)

    24k=24*4.166%=99.984%(999‰)

   24k gold is often considered to be pure gold, as a "1000 ‰", but the actual gold content of 99.99% discount for 23.988k.

2.With words to express purity of gold

    Some gold jewelry tag play written, its provisions are: pure gold - gold is not less than 990‰ .

 
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