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No 39 xinghe road,Qingdao,Shandong,China China
Contact Person Ms. jessie jiang
Address No 39 xinghe road, Qingdao, Shandong
HNA offers Pony Rods, Piston Rods and Clamps to meet today's tough oilfield requirements. Pony Rods Our Pony Rods incorporate the longer wearin
HNA premium liners combine the strength of a forged steel outer shell with the abrasion and corrosion resistance of a high chromium iron inner sleeve.
HNA offers two style of Four-wing guided valves and full open seats which feature greater fluid flow through the full open seat. The full open seat pr
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