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I-valve yokugoba ye-hydraulic ye-API 6A esezingeni eliphezulu
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I-valve yokugoba neyokugoba ye-API6A
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Isixazululo Esiphelele Sokulawula Ukugeleza Okunembile
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Iphaneli yokulawula i-Choke valve ethuthuke kakhulu
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I-valve ye-swaco choke esebenza kahle futhi ethembekile ye-API6A
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I-valve yokugoba elungisekayo ye-API6A yokusebenza kokulawula umthombo