1) outer diameter:20 to 219 mm 2) surface treatment: hot galvanized 3) wall thickness:0.5-5mm 4) quality:Q195, Q235,Q345

 Black pipe processing cycle:

              Hot Dipped Galvanized Pipe Proceed Flow

Black Pipe Examination→Acid Washing→Water Washing→Solvent Coating→Linning→Drying→Hot Dipped Galvanizing →Outside Blasting→ Inside Blasting→Water Cooling →Examination→Passivation→Proceed Cleaning→Drying→Printing→Sprinkling Passivation→Marked→Packing→Final Examination Storage

Galvanizing Line:

Features:

1.Hot rolled or cold drawn or precision steel pipes/tubes are avalible here

2.Length:5.8m,6m-11.8m,12m,or any llength as customer required

3.Application:used for oil ,boilers,precision machines,petro-chemical ,ship,structure pipe,automobile,shock absorber,building,geology,fluid tubes,line pipe etc

4.High quality:ISO9001 API5L API5CT TS16949 ISO14001

5.We have professional testing equipments such as ultrasonic testing machine,eddy current testing machine,mechanics testing machine to make sure high quality

6.Machining steel pipes and tubes are avalible here,we have CNC lathe and other equipment

7.Others:painting,caps,beveled edges,marking,tread and so on according to request

Packing: 

To my dear friend :

we know that to find a new supplier and to do business with them is a risk for you.Maybe you worry about the quality,the payment,the time of supply,the servises and so on.I can understand that.

We have done exporting for 3 years,time can prove us the services and the meaning of our existence till now

I hope you can give us full trust.Cause we not only being internal good reputation enterprise but also want to be world wide outstanding enterprise.We promise we will supply you with high quality production and good services.

we welcome friends everywhere come to our company and cooperate with us.

Waiting your kindly reply.

galvanized steel tube