Tungsten steel as materials, precision machining of tungsten wire hardness up HRA90 above its mouth, and across all of the hole to protect the Qin mirror finish envelope will not be scratched with a high rigidity and hardness, not easy to bend and plug, impact resistance, wear.
Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
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Email: sales@chinatungsten.com
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Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn