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   Site:Home >> About Us >> Products Patent


Six Patents for Our Steel Tubes

The staff of Shanghai Tianyang Steel Tube Co., Ltd attach great importance to reseach & development of new products and intellectual property rights in its manufacturing practice. With affluent cost of scientific research and active engagement, our company is always developing new techniques and products meeting the demand of the market and the customers, thus promoting the outstanding achievement.

At present, there comes good news that we obtain six national patents for our new process routings and new products, which shelter our intellectual property rights in the system of market economy.


The patents and their numbers are shown below.

1、 《Cold Drawing Process Routing of BA Seamless Tube with High Precision》 ——200510088021.4
2、 《BA Non-oxidization Treatment of Seamless Tube with High Precision》 ——200510068664.2
3、 《Cleaning Technique of Hydraulic Precision Tube》 ——200510088020.x
4、 《Black and Phosphated Process Routing of Hydraulic Precision Tube》 ——200510054974.9
5、 《Internal & External Galvanizing Technology of Seamless Tube with High Precision》 ——200510088022.9
6、 《Military Green Passivation Technology of Seamless Tube with High Precision》 ——200510088019.7
 
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