Guangzhou Hongtuo Mechanical Casting mobile phones
official website

Step one: Using a smart phone to install scanning code software, such as "wochacha", "Win on Quick Code” etc.
Step two: Open the scanning code software against the QR code, then you can get an interlinkage.
Step three: open the link, and then enter Weyes Mobile Phone Official Website.

Scanning the QR code, you can land the mobile phone website
Home  >  Info. center  >  News  >  Our company has successfully got DNV GL manufacture certification


Our company has successfully got DNV GL manufacture certification

After over one year's certification work and workshop renewal,we've finally passed the DNV GL manufacture review and obtained the relevant certification on May 14th 2017. 

This approval has covered entire manufacturing procedures and mechanical tests of CrNiMo austenitic steel(such as 316 316L) and 25Cr duplex stainless steel(such as 2507).In the meantime,the Welding Procedure Specification(WPS) was got certificated as well.This specification demonstrates that we possess the core technique of produce pump valve parts via investment casting,accredited qualification for mechanical property and non-destructive test.