Casing Head
In 2018, experts of DNV GL conducted PR2 capability experiments to the TX7-70-2GF（7-10000Psi）Cubing Head produced by Shengji, and approved the valve was competent and signed the inspection and verification witness report.
In 2018, experts of DNV GL conducted PR2 capability experiments to the TX7-70-2GF（7-10000Psi）Cubing Head produced by Shengji, and approved the valve was competent and signed the inspection and verification witness report.
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