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Our main product, yearly output is 120 thousand tons, is High Frequency Welded(HFW)steel pipe and stainless steel tubes :
OD: 5-1/2(139.7)～13-3/8 inch(339.7mm)； Wall thickness: 0.138(3.8)～0.5 inch (12.7mm), Steel grade: A、B、X42-X70, H40, J55,K55； Standards: API spec 5L, API spec 5CT, ASTM A53, EN10219-2, GB/T9711.1 (ISO3183.1), GB/T9711.2 (ISO3183.2) etc. and have got the certificates: UKAS ISO9001-2000, API-5L(0445), API-5CT(0602).In 2004 to 2006, our products have been awarded:shandong Famous Brand and National High Quality Product and our company have got Top 100 Private enterprises by shandong city government and Top 50 Enterprises by China Petroleum & Chemical Equipment Association.
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