Manganese is a silver-gray metal, much like iron, but softer than iron. If manganese contains a small amount of impurities-carbon or silicon, it becomes very hard and brittle. However, pure metallic
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Jining Tongderui Construction Machinery Co., Ltd: We're well-known as one of the leading electrical spare parts, engine spare parts, hydraulic spare parts, cab spare parts manufacturers and suppliers
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Jining Tongderui Construction Machinery Co., Ltd: We're well-known as one of the leading electrical spare parts, engine spare parts, hydraulic spare parts, cab spare parts manufacturers and suppliers
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