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RockySea Petro Gas Recovery Wellhead And X-Mas TreeSuperior gas tight performance and pressure/corrosion proof performance.The sealing surface is very hard and fits accurately.Metal spray valve gate and seat.Excellent sealing performance and small rotating torque.Special structures composite stem seal.RockySea Petro has more than 40 years of experience in wellhead and christmas tree production, with advanced manufacturing and testing equipment, can produce a variety of pressure levels, material levels, spe

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