Company Description
Ningbo Beilun Longsheng Hardware Co., Ltd manufacturer in China with ISO 9001 ASTM A193/A320 -B7/B7M/B16/L7/L7M Threaded Rods 12 feet/Stud bolt and Heavy Hexagon Bolt , we export worldwide with quality products., each of every items will be tested before leaving our ***** production is 600 ~800 tons