Seamless steel pipe has five technical delivered conditions. They are BK , BKW , BKS, GBK and NBK. Another expression is +C, +LC, +SR,+A, +N.l BK or +C temperature service means Cold Finished (Hard). There is no need heat temperature treatment for the last process of cold drawn or cold rolled craft.

DIN2391 Standard of seamless precision cold drawn or cold rolled steel pipes is similar as the standard EN10305-1. It is wildly used in motor front and rear shock absorber. And automobile parts, gas spring of furniture, machine parts, oil system tubes and so on. The standard technical delivery condi

We attended Wire Tube Exhibition in Thailand from 19th to 21st Sep, 2017.It was a Southeast Asia Wire&Tube Show which held every two years.The visitors and audience not only came from Thailand but also from Taiwan of China, Hongkong of China, India, Vietnam, Malaysia and so on. The Exhibitors also f

I will show you the differences clearly in the form as below:

At the end of March RAY Steel Pipes started the travel in Pakistan. We visited Karachi city and its captial Islamabad(ISB). Our clients' and Pakistani people's kindness, warm reception left us on deep impression. While arrived Karichi airport our client picked up us at the exit door. and took us to