good quality form drill ...

tungsten carbide WS39 teeth 1.five times more durable than ordinary ones 2.passed ISO9001/2008 3.can be customed foundation  teeth  WS39Overseas experience showed auger bit with wear-resistant wing are three times more durable than ordinary ones.and it is our...

rock drill 1.the tungsten carbide tip is fired by vacuum 2.it has passed ISO9001/2008 3.can be customed Liaocheng Ruizuan construction cutter co., Ltd is a professional manufacture and technical service supplier of shield driving cutters.With shield driving machines using in...

TBM cutter 1.the tungsten carbide tip is fired by vacuum 2.It has passed ISO9001/2008 3.can be customed TBM cutter Liaocheng Ruizuan construction cutter co., Ltd is a professional manufacture and technical service supplier of shield driving cutters.With shield driving...

Detailed Product Description  Liaocheng Ruizuan Construction Cutter Co.,Ltd is a professional manufacturer of rotary bits,coal mining bits,flat bits and shied driving cutters.Ruizuanproducts are widely used in coal mine,underground mine,tunnel,subway,metallurgy,water conservancy project...

Detailed Product Description we can supply all kinds of "Ruizuan"brand    coal mining bits,sleeves and holders which have high strength  ,high wear resistance and long life features.They are widely used on excavation  machines,shearers,continuous mines...

Detailed Product Description we can supply all kinds of "Ruizuan"brand    coal mining bits,sleeves and holders which have high strength  ,high wear resistance and long life features.They are widely used on excavation  machines,shearers,continuous mines...

Detailed Product Description  Liaocheng Ruizuan Construction Cutter Co.,Ltd is a professional manufacturer of rotary bits,coal mining bits,flat bits and shied driving cutters.Ruizuanproducts are widely used in coal mine,underground mine,tunnel,subway,metallurgy,water conservancy project...

Detailed Product Description we can supply all kinds of "Ruizuan"brand    coal mining bits,sleeves and holders which have high strength  ,high wear resistance and long life features.They are widely used on excavation  machines,shearers,continuous mines...

Detailed Product Description we can supply all kinds of "Ruizuan"brand    coal mining bits,sleeves and holders which have high strength  ,high wear resistance and long life features.They are widely used on excavation  machines,shearers,continuous mines...