Liaocheng Longfei Steel Pipe Co., Ltd   

        20 of 6*1-630*8020 seamless steel pipe seamless steel pipes standard, 20 seamless steel pipes pressure requirements, 20 seamless steel pipes of the chemical composition of.20 seamless steel pipes of the technical requirements of Shandong province Liaocheng Longfei Steel Pipe Sales Co., Ltd. North China steel pipe industry created the earliest, one of the largest, strength the strongest enterprises, inventory kept million tons, we recently also expanded the scope of business, is now in Tianjin Nanjing. Jiangsu. Xuzhou. Anhui. Ningbo. Guangxi Zhejiang Hefei Nanning   Changsha. Hunan. Dalian   to customer delivery!  
about 8000000 investment in imported equipment realizes self small seamless steel pipe production, produce specifications for phi 25 phi 108mm wall thickness of 2 - Phi 20mm steel pipe, at the same time, the introduction of two sets of heat pipe expanding equipment can produce   lattice is Phi 273 - Phi 720mm wall thickness of steel pipe of 6 - 50mm. You can build processing square pipe, rectangular pipe, centrifugal casting seamless steel tube, large diameter straight tube (weld can be removed, can be testing). To better serve the new and old customers, the company launched special door-to-door delivery services, have special, special shuttle customers to negotiate business.  
executive standard: structure of tube (GB/T8162-1999)   (GB/T8163-1999);   fluid pipe for low and medium pressure boiler tube (GB3087-1999)   high pressure boiler tube (GB5310-1995)   fertilizer tube (GB6479-2000)   oil cracking tube (GB9948-2000)   hydraulic tube (GB/T17396-1998)   geological special tube (YB235-70)   ship tube (GB5312-85) cold rolled precision seamless pipe (GB3639-83)