1.Certified by 9001-2008

2.Use high grade alloy steel , tungsten carbide tip and advanced brazing,technology to produce high quality.Weldable steel is suitable for covering large ares. The material of the steel body adopt the 42CrMo.The tungsten carbide tip adopt YG11C and YG13C.

3.Design all kinds of rotary bits,trenching bits,diaphragam wall cutters,big diameter bushing bits and flat bits according to customers' requirements and geological conditions.

4.Supply the following bits and holder as :

B47K22H,B43H,B47K,B85/2,DV25,BFZ80,BFZ72,BFZ70,BFZ65,WS39,WS20,WS46,BA24,BA13,BA04,SB38ZM,SB42JM ,C403,B43H,BHR121,BTK10,BTK03,BHR73,BA01/BA70-38,BA24/BA90-42,BA13/BA55-22.B75,BFZ25R,BP04,BPH02,BRV32,C31,C30and so on.

1.If you couldn't couldn't confirm the specification of the products that you required,you shall supply me the drawing of them.

2.If you couldn't confirm our quality ,you shall choose the sample for the first time,we will supply them ASAP.

3.For the trail order,the order quantity shall be any amount.

4.As to the payment terms,we shall accept the L/C ,TT .

5.Welcome you visit our factory at any time.

1.Produce the products according to your requirements ,and we  could supply the drawing according to your sample.

2.Supply the sample .

3.Supply the technology After-sales Service.