Ningbo Topbolt Metalworks Co.,Ltd. is a manufacturer in China which mainly produces high strength fasteners and specializes in all kinds of hardwares.
The company products consists of bolts & nuts assembled or separate, self tapping or drilling screws, lag screws, threaded rod or studs, washers, which are made from both carbon steel and stainless steel. The products are exported to North America, Europe, Australia, Russia, Southeast Asia and middle east and are strictly conform with DIN,ANSI/IFI, JIS,BS,ISO,GB specification, which are applied to architectural steel structures, brigdes, oil pipeline,machinery equipment, furniture,vessel, railway.