Petroleum and natural gas industries-downhole equipment-lock mandrels and landing nipples 石油和天然氣工業(yè).下井設(shè)備.鎖芯軸和落地接頭
Petroleum and natural gas industries-downhole equipment-lock mandrels and landing nipples 石油和天然氣工業(yè).下降孔設(shè)備.鎖緊芯軸和落地螺紋接頭
Petroleum and natural gas industries-downhole equipment-lock mandrels and landing nipples iso 16070 : 2005; english version en iso 16070 : 2005 石油和天然氣工業(yè).下井設(shè)備.鎖芯軸和落地接頭