Jiangsu Ruigong Petroleum Machinery CO.,LTD located in Nanjing,Specialized in petroleum machinery,production and manufacturing,focus itself on researching & developing ,manufacturing,sales and services.Our products cover in many fields,such as oil(gas) chris***s tree,slab gate valve,expanding valve,mud valve,adjusting valve,6A ball valve,casing head,tubing head,hanger,casing spool,tubing spool,nipple,flange,chris***s tree cap and other wellhead ***re parts.
Advanced machining center and CNC lathes to ens...
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