11"、9"、8"、7-3/4" 、7"、6-1/4"、5"、4-3/4"、4-1/8"、3-1/2"、3-1/8" Drill Collar
Stock8800
Product name:Drill Collar
Specification & model:3-1/8″~11″
Type:Ordinary/spiral/non-magnetic
Manufacturer:Shuguang Huayang/Shanxi Fenglei
Steel grade:4145H
Service base:Domestic (Xinjiang/Inner Mongolia/Sichuan/Tianjin/Dongying) and some regions overseas
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Drill Collar
Product details
Drill Collar
Ⅰ.Product Introduction
Ⅱ.Application cases
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