Vacuum fusion sintering
vacuum fusion sintering VFS
VACUUM GAS OIL
粗真空制气油
减压瓦斯油
VGO馏分油
减压蜡油
粗柴油
减压粗柴油
减压馏分油
蜡油
vacuum gas oil hydrotreatment
vacuum gas pressure infiltration
vacuum gas quenching furnace
vacuum-gas flushing packaging machine
Vacuum-gas pressure infiltration
alkali fusion reaction gas chromatography
Inert gas fusion method
Inert gas fusion thermal conductivity method