screw-tube lathe 螺管车床
inner screw tube and 内螺纹铜管铝片
screw tube conveyor 管式螺旋输送机
Screw-tube for marine auxiliary boiler 船用辅锅炉螺纹管
PTFE screw tube 聚四氟乙烯螺旋管
screw tube heat exchanger 螺旋管式换热器
screw tube condenser 螺管凝汽器
screw-tube air heater 螺旋槽管式空气预热器
tube screw machine 管子螺丝车床
Single-motor construction, simple screw tube design, few operating.
单电机，螺纹管设计：结构简洁，传动件少。
Single-motor construction, simp, e screw tube design, few operating parts.
单电机，螺纹管设计结构简洁，传动件少。
The inner tube is a light tube, a screw tube, an inner rib tube or a tube with a spoiler.
所述内管是光管、螺纹管、内肋管或带有扰流片的管子。
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