... both domestic and abroad markets.And they are wildiy using in PV modules as solar frames/suppor,construction structure,machinery ... ,sea trestle ,offshore,oil filed ,curtain wall,Automobile axle pipe and so on.Other products :seamless steel tube , weld ... steel tube with the compound sections,spiral steel pipe,insulation steel pipe,anticorrosion steel pipe.Contact Jack Li :8613653375788;86-0317-3099705