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25 or 1 RR spike If ore is high in pyrite , or contains a large amount of base , borax glass should be increased by 5 to 10 gm . Fusion should be at temp of 950 ° to 1 000 ° C ( yellow ) , and requires 25 to 40 min .
For ores up to 300 oz of gold and silver use charge ( a ) , above that amount use ( 6 ) , except for specimens composed largely of telluride , in which case ( c ) is preferable . Charges should be fused at moderate temperature , though ...
In 12 years at 6 % , $ 400 amounts to A 400 ( 1.06 ) 12 $ 804.88 . ... The amount of $ 400 in 12 years with interest at 6 % and compounded quarterly will be A = 400 1 + = $ 817.39 , instead of $ 804.88 if compounded yearly , and instead ...
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LibraryThing ReviewUlasan Pengguna - wackyvorlon - LibraryThing
I only have the second volume of this work, and I love it! Found at a local Value Village, it is filled with fascinating information. Details of all aspects of mine engineering, including compressed air, ventilation, and supporting structures. Baca ulasan lengkap
Conditions Methods in General
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