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- 3 7/8", 5", 15000psi, well testing Drill stem testing Lock Open Tester Valve / DST APR N-valve
- Xi'an ZZ Top Oil Tools Co.,Ltd is one of the top level lock open tester valve manufacturers and suppliers, with professional factory, we are able to produce API and oilfield dst tester valve, select tester valve, well testing tester valve, welcome to
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Xi'an ZZ Top Oil Tools Co.,Ltd
[Verified]
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Negotiable
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