We can supply all kinds of coal mining bits, sleeves and holders ,and shearer picks, which have high strength,high wear resistance and long life features.They are widely using on excavation machines, shearers,continuous mines etc.
We choose high quality steel, and high quality tungsten carbide tip via forging, welding, heat treatment. Steel body, made by material 42CrMo, heat treatment with 40-44HRC hardness, has high toughness and wearable character. Tip is made by material tungsten carbide, and Suitable Grade Selected according to the Target Projects, Which are to make sure the good performance during working.
RuiZuan's new products, JB series: body with special material, impact resistant, and with a special kind of rock breaking alloy, mainly used in hard rock, superhard rock conditions.
Thespecification:U82,U84,U85,U92,U94,U95,U47,U765,C31HD,AM50,13#,23#,55#,S100,S120,S135,S150, S160,S170,S200,etc.
For more details please contact us. 
Tel:86-635-6511677  86-13561200673  Email:rzdrill@yahoo.cn  Msn:rzdrill@hotmail.com   Skype:rzdrill    
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