Application
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Coal Mining,Quarry drilling,DTH drilling
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Diameter
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3 3/4"~26"
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Transfer
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Air/Sea/Express
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Advantage
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High Performance
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Production Application:
Fast and Safe Delivery Team
Q1: Can I have a sample for testing?
A:Samples are still to be paid but discounted price can be provided.
Q2: Do you have the inspection procedures?
A:100% strict inspection and testing for every order before packing.
Q3: How can i get the after sale services?
A:Free replacement will provide once the problems casued by our product quality.
Q4: Can I have a visit to your factory before the order?
A: Sure, welcome, here is our address: Yantai, Shandong.