solid draw pipe 无缝钢管
draw-off pipe 排油管 ; 排污管
cold draw pipe 冷拔管
draw pipe packing machine 吸管包装机
draw out casing pipe 起拔井壁管
FEM has been used to simulate and analyze the forming process of rotary-draw pipe bending.
利用有限元计算方法对管材弯曲成形过程进行了模拟分析，并与实验结果进行了比较。
这管子不容易拉长。
Check the operating condition of electric draw stem and electricity parts. Check the electric hydraulic parts and pipe joints.
定期检查电动推杆及电气部分的运行情况，电液部分的运行情况及管接头处是否有泄漏现象。
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