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Jiangsu Shuguang Huayang Drilling Tool Co., Ltd.
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alloyed steel Heavy weight drill pipe specification 3 1/2-6 5/8" , API specification

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Product Details
Place of Origin: China
Brand Name: SHUGUANG
Certification: API 7-1;NS-1
Description
Specifications i. Certificate:NS-1 API 7-1, API Q1, API Recommended Practice 7G-2 ii. OD: 2 7/8" to 6 5/8" or 73mm to 168.3mm iii. Grade:4145H iv. ...

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