Drill Rod Box and Pin/Drilling Coupling
(Description of Box and Pin): φ57、φ65、φ75、φ121
Description of Drilling Coupling): φ57、φ65、φ75
Address: No. 122 Xizhang Road, Industrial Concentration Park, Gushan Town, Jiangyin City, Jiangsu Province
Telephone：18567643971Mailbox：lucky@chinaxizuan.comQQ：228763327
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Technical Support：Lange
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