1) screw plate for gas thread
管螺纹钢板
2) spiral steel tube
螺纹钢管
1.
Taking saturated ammonia vapor of the large-scale refrigeration system as working material and carrying out experimental research on condensed heat exchange which takes place in the outer surface of 4 kinds of spiral steel tube whose height is 4 000 mm,norm related formula of outer tube s condensed heat exchange is gained.
以大型制冷系统中的饱和氨蒸气为工质 ,通过在高度为 40 0 0 m m的四种螺纹钢管外表面上凝结换热的试验研究 ,得到了管外凝结换热的准则关联式。
3) copper rifled tube
内螺纹钢管
4) Steel pipe thread
钢丝螺纹管
5) pipe thread die
管螺纹板牙
6) screw plate for metric thread
米制螺纹钢板
补充资料：宝鸡石油钢管厂大口径薄壁钢管的φ508排辊成形机组
宝鸡石油钢管厂大口径薄壁钢管的φ508排辊成形机组
宝鸡石油钢管厂大口径薄壁钢管的中508排辊成形机组
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条