sts big butt tits inked cutie gets pounded hard

Collect this website | contact us Hello! Welcome to the official website of Shandong Liaocheng precision steel pipe factory!
Quality assurance and sustainable operation
Provide a better product than the customer expected
National Service Hotline:
thirteen billion nine hundred and sixty-three million thirteen thousand and ninety-nine
eighteen billion nine hundred and sixty-three million five hundred and sixty-one thousand six hundred and fifty-five
Current location: homepage > Steel tube news >

Can welded pipe produce precision steel pipe?

Author: Liaocheng precision steel pipe factory http://galinabelyaeva.com Date: 11:02, March 24, 2019
  Welded pipe can be produced Precision steel pipe Is that right? Of course, there are three specific production processes
The first production method of precision welded pipe:
Tube blank (plate, strip) is directly formed and welded into pipe, and the main processes are sheet forming, welding and sizing.
Features: less production process, simple engineering process, short production cycle and low precision.
The second production method of precision welded pipe:
The tube blank (plate, strip) is directly formed and welded into a certain size of pipe, and then cold drawn or cold rolled into finished pipe, which is generally known as DOM welded steel pipe. The main processes are forming, welding, sizing, cold rolling or cold drawing (with or without mandrel), or continuous cold drawing (i.e. welding cold drawing joint production line).
Features: scattered production process, long process flow and production cycle, large area, good dimensional accuracy, smooth internal and external surface, good mechanical properties and metallographic structure.
The third production method of precision welded pipe:
The tube blank (plate and strip) is directly formed and welded into a certain size pipe, and then it is cold reduced into finished pipe by continuous reducing mill. The main processes are forming, welding and continuous cold reducing.
Features: compact production process, simple process flow, high production efficiency, fast specification range change, suitable for production of small diameter and thin wall electric welded steel pipe.
The above is the production process of welded pipe production precision steel pipe, I hope to help you.

Related information

contact information Contact information

Shandong Liaocheng precision steel pipe factory
Contact person: Director Wang
Mobile phone: 13963013099 18963561655
Email: 13963013099@163.com
website: galinabelyaeva.com
Address: JIANGGUANTUN Industrial Park, Liaocheng City, Shandong Province

Contact person: factory director Wang mobile phone: 13963013099 18963561655
Email: 13963013099@163.com Address: JIANGGUANTUN Industrial Park, Liaocheng City, Shandong Province
Copyright: Shandong Liaocheng precision steel pipe factory © 2019-2022 http://galinabelyaeva.com All rights reserved
*The products and all kinds of information, pictures and materials published on this website are all copyrights of this website and are prohibited to use without authorization*

vrallure busty ebony beauty daizy cooper plays with her sex toys in virtual reality loan4k le banquier est pret a aider une fille si elle donne quelque chose en retour certain men like to enjoy shaved pussies it gives them better visibility and juicier hole daddy4k papa intelligent ne perd pas sa chance davoir des relations sexuelles avec ses fils nouvelle copine elegant angel petite blonde gets fucked by stepdad