Coal drill bit two wings 28#42# dry matching coal drill pipe

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: >: >< br(,,) >Yankuang Sanqiang Mining Machinery Company, mainly produces whole-rock, Semi-coal rock picks, high-strength drill bits and other mining tools and shield cutting tools, various types of engineering drill bits, shearer drums, and tunnel boring machine cutting heads.
This product: alloy drill bit coal drill bit
Purpose: coal drill bit is suitable for general coal seams, model:
< r#>< >< br(,,)>Coal drill bit series produced by our company , based on the needs of coal mine production and involving the advantages of domestic and foreign drill bits, this product is specially developed, the product quality is optimized, and high-quality alloys are selected. The product has the advantages of large torque, fast drilling speed, wide drilling range, time saving, labor saving, safety and durability. < r#>Longer life than ordinary coal drill bits! ! ! !
r>< >< br(,,)>Our store adheres to the principle of quality first and reputation first to provide better service to customers. < r#>Describe the price, freight, logistics and express delivery methods, which must be determined after negotiation with the seller< r#>Payment, contact number
< >< br(,,)>< r#>< br(,,) >Direct All photos taken are not shipped in advance. (Products with non-product quality problems) If the second sale is not affected, the goods can be returned or exchanged by agreement with the seller. The return freight will be borne by the buyer.
< >< br(,,)>< r#> < br(,,) >Cash on delivery is not accepted! ! ! ! !
< >< br(,,)>< r#>: b>< r#>The company has strong technical force and perfect after-sales service. All performance indicators of the products have reached the leading domestic level.
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: >: >< >: >: > : > (,,)>: >: >< >: >: >: >: >< >: >: >< >: >: >: b>: >: >: b>< r#>< b . >
: >: >< >: >: >: > (,,)>: >: >< >: >: >: >: >< >: >: >< r# >: >: > : b>: >: >: b>< >: >: >: b>< r#>The mining equipment accessories (drill pipes, drill bits, picks, damping heads) produced by our company have passed the Beijing China Internet of Things Joint Certification Center Certification, and issue quality management system certification, the registration number is >R
>. The company has passed: quality system certification and more than 20 industry honors and awards.
: >: >< >: >: >: > (,,)>: >: >< >: >: >: >: >< >: >: >< r# >: >: >: b>: >: >: b>< >: >: >: b>< r#> >Our company supports sample processing and welcomes people from all walks of life to visit and negotiate!
: >: >< >: >: >: > (,,)>: >: >< >: >: >: >: >< >: >: >< r# >: >: >: b>: >: >: b>< >: >: >: b>< r#> >Telephone