... :SPZ0 3)Specifications:30g,45g,50g lead sinkers for fishing net Specifications:30g,45g,50gOut company established ... materialMainly using the Lead,Tin and Zinc etc.3.Technology and equipmentDie-casting, centrifugal casting, extrusion, cold drawing ... , cold-rolled, cold extrusion, cold heading, punching, forming lead chain, lead rope, ...