Shijiazhuang Pairun Export And Import Trade Co.... is a one of the biggest manufacturers of steel flanges in China. We produce steel flanges more than 10 years. Our products include: Slip on, Weld neck, Socket weld, Threaded, Lap joint Spectacle. 90% our flanges are exported to Middle East and South Asia. We write this message with the hope of establishing business relations with you esteem company. If you are interested in steel flanges, please feel free to contact with us. Best regards. Mary Guo