Vacuum tempering furnace with direct heating type VAD直接加热式VAD型真空回火炉 Vacuum tempering furnace with direct heating type VAD直接加热式VAD型真空回火炉 龚辉明17717911709（微信同号）
Vacuum heat Treatment furnace type VWQ真空热处理炉 Vacuum heat Treatment furnace type VWQ真空热处理炉 龚辉明17717911709（微信同号）
Vacuum heat treatment furnace type VWC真空热处理炉 Vacuum heat treatment furnace type VWC真空热处理炉 龚辉明17717911709（微信同号）
