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No.93,East Zhongshan Rd,Ningbo,Zhejiang,China China
The heavy weight drill pipes we manufacture are integral ***** are from AISI 4145H modified drill collar material.Hardbanding on both end and center o
The non-magnetic drill collar is assured by the chrome manganese stainless ***** non magnetic drill collar quality is strictly controlled by API stand
We manufacture integral spiral blade stabilizer, integral straight-rib stabilizer, sleeve replaceable type stabilizer, all above products comply with
Contact Person Mr. Jianfeng Chen
Address No.93,East Zhongshan Rd, Ningbo, Zhejiang
We will contact you soon .
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