continuous roller-hearth furnace 连续辊底式炉

roller hearth continuous rotaflame furnace 转焰炉

roller hearth continuous annealing furnace 辊底式连续退火炉

continuous roller hearth type furnace 连续辊底式炉

roller hearth continuous furnace 辊底式炉

continuous heat treating roller-hearth furnace 辊底式连续热处理炉

continuous roller-hearth heat treatment furnace 辊底式连续热处理炉

Roller-Hearth Continuous Annealing Furnace 辊底式连续退火炉