The tungsten standards include Chinese national standards, industrial standards and international standards.
This Chinese national standard applied for tungsten plate produced by powder metallurg.
This standard introduces terms of powder metallurgy.
This standard specifies oxide kind, technology requirement, and inspection rules. The attachment is blue tungsten oxide testing method.
This standard is applicable to cast tungsten carbide powder used for surface reinforcement of oil drilling tools, building materials machinery, sugar cane crushing tools, grain machinery and other wear parts.
This standard shows powder Scott density testing.
This standard applied for vacuum coating tungsten heater.
This standard provides tungsten carbide powder requirement, testing method, inspection method, marks, packing, transport and storage.
This standard provides ammonium paratungstate requirement, testing method, inspection method, marks, packing, transport and storage.
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