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Xizhimen,Beijing,Beijing,China China
Drill collar plays a significant role in drilling and tapping of oil and natural gas, based upon its own advantages of advanced deep-hole boring techn
Intergral Heavy Wall Drill Pipe is made from AISI 4145H high purity steel , fully heat treated.All physical properties conform with API SPEC 7 latest
The mould is made of solid forged special steel bar, its deep hole being drilled for entire length by application of an advanced technology. The mou
These types of Magnesia Chrome bricks are mainly used for lower vessel and snorkel tube. Our bricks have been exported to Russia, Germany, Belgium, an
連絡先担当者 Mr. Lee Elven
住所 Xizhimen, Beijing, Beijing
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