locomotives
We are approved fasteners vendor of china locomotives manufacturers , our products for locomotives including standard fasteners ,brand fasteners , customized fasteners and etc. the applications covers bogie , coupler, driver's cab, body ,pantograph and etc . Our high q…

Metro vehicles
Our company is the fastener products more than the domestic metro vehicle manufacturer direct suppliers, matching the capacity through rigorous review and approval of the customers; GEMLOCK series anti loose nut, lock washer and other products more directly related tec…

Engineering machinery
We provided bolts and anti-loosing nuts for the essential applications of construction cranes. The construction cranes are widely used for shipyard , power plant , and installation of large-scale engineering equipment and etc . even slight defects may cause equipment f…

Shipbuilding
One of the largest marine engine company is using GEMLOCK series slotted locking nuts and locking washer. The diesel marine engines are always work in the vibration environments. The connecting fasteners are creatial to the security of equipment . The GEMLOCK series …

Railway catenary
Our GEMLOCK series locking nut was tested base on industry standard, including torque, dis-assembly, vibration and fatigue test, and is well serving for china high speed railway.