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Large diameter welded pipe is generally used GB/T3091-2001 and GB/T9711.1-1997 standards. Straight pipes made of Q235A, Q235B, 16Mn, 20#, Q345, L245, L290, X42, X46, X70, X80, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb. Large diameter welded pipe is mainly used for conveying water, gas, air, oil and heating hot water or steam, such as generally low pressure fluid and other use pipe. Large diameter welded steel pipe surface allows the existence does not exceed the negative deviation of thickness of scratch, scratch, weld dislocation, burns and scarring and other minor defects. Allow the weld thickness and welding reinforcement. Large diameter welded steel pipe production process is simple, high production efficiency, low cost, rapid development. |
Company: |
Threeway Steel Co.,Ltd
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Contact: |
Mr. SRT PIPES |
Address: |
22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road |
Postcode: |
40116 |
Tel: |
+8673188678578 |
Fax: |
+8673188678578 |
E-mail: |
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