求翻译:New transmission lines and liquid propane vapor unloading from the bus station to the ethylene plant in the middle tank return line是什么意思?待解决 悬赏分:1 - 离问题结束还有 New transmission lines and liquid propane vapor unloading from the bus station to the ethylene plant in the midd...
LNG filling pipe stainless steel unloading hose DN50 Low temperature metal hose cryogenic bellows cryogenic liquid transfer hose $21.42 Min. order: 10 pieces G5/8 high pressure gas cylinder hoses flexible oxygenCGA580 CGA540 hose Oxygen Cylinder Filling CGA320 CGA440 $17.00 - $17.70 Min. orde...