The casing pipe is applied in petroleum & gas exploration.It is
the important part of oil drilling, it is the lifeline of oil well.
According to the different geological conditions ,the stress state
is complicated, so the quality of the casing pipe has paramount
importance. We are working at professional production of the HFW
steel pipe use for oil and gas, In strict accordance with petroleum
sector standard, national standard, American Petroleum Institute
API Spec 5CT standard, the product widely used in foundation work
of petroleum, coal gas and natural gas.
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