It is manufactured with improved material (alloy steel).
All the parts have passed the testing and checking before shipping. (UT, MP insepection, hardness ect.)
The performace is better than the original parts.
Please feel free to contact us
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Shanghai Hafeige Industrial Co., ltd.
Audited Supplier
9 years
Profile Certified by SGS/BV
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mm/Mf Deep Hole Drilling Hexagonal and Round Extension Speed Drifter Guide Drill Rod
Xiamen Sansung Mining Equipment Co., Ltd.