a list of assayers for gold silver and other precious in spain
SPAIN In 1934 the Spanish hallmarking system was organized on three types of marks fineness mark in the form of a fivepoint star for 9151000 purity plata de ley and a sixpoint comet for 7501000 purity plata de segunda makers mark in a hexagonal contour assay office code as a letter code stamped in the fineness mark star this code was rarely used left 915 fineness ...We are a professional mining machinery manufacturer, the main equipment including: jaw crusher, cone crusher and other sandstone equipment;Ball mill, flotation machine, concentrator and other beneficiation equipment; Powder Grinding Plant, rotary dryer, briquette machine, mining, metallurgy and other related equipment. which can crush all kinds of metal and non-metallic ore, also can be dry grinding and wet grinding.If you are interested in our products or want to visit the nearby production site, you can click the button below to consult us.Welcome to our factory to test machine for free!
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