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 pipe knowledge >

What are the production materials of precision bright tube?

Author: Liaocheng precision steel pipe factory source: unknown date: January 31, 2019 11:23

  Precision bright tube The production materials are as follows:

10, 20, 45, 35, 27SiMn, 20Cr, 40Cr, 12CrMo, 35CrMo, Cr5Mo, Cr9Mo, 60Si2Mn, 65Mn, etc.

 

Precision bright tube is mainly used in mechanical structure, hydraulic equipment. Selecting cold drawn precision seamless tube to manufacture mechanical structure or hydraulic equipment can greatly save machining time, improve material utilization and improve product quality.

Precision bright tube is a kind of high precision steel pipe material after cold drawing or cold rolling. Because there is no oxide layer on the inner and outer wall of the precision bright tube, no leakage under high pressure, high precision, high finish, no deformation in cold bending, flaring, flattening and no crack, it is mainly used to produce pneumatic or hydraulic components such as air cylinder or oil cylinder.

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