1. Defect characteristics
Unfused refers to the phenomenon that the weld metal is not completely melted and bonded with the base metal or between the layers of the weld metal.
Failure to penetrate ...
In the industrial and construction sectors, the selection and installation of valves are critical factors in ensuring the proper functioning of systems. TWS will explore the considerations when ins...
Dear Friends,
We are Tianjin Tanggu Water-Seal Valve Co.,Ltd,this week we begin to work from China New Year,and all work back to normal.
Our company mainly produce rubber seated butterfly valve,sof...
TWS Valve is a leading supplier of high quality valves, offering a wide range of products including resilient butterfly valves, gate valves, ball valves and check valves. In this article, we will f...
In the 30s, the butterfly valve was invented in United States, introduced to the Japan in the 50s, and was widely used in Japan in the 60s, and it was promoted in China after the 70s. At present, b...
As the New Year approaches, TWS wishes all our customers and partners a Happy New Year, and hopes that everyone will have a prosperous year ahead and a happy family life. We would also like to take...
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