British screw heavy duty earth clamp 200A 300A500A 1. 50pcs/ctn G.W/N. ... /11kg 39*33*20cm 2. Material: Brass or Stainless s British screw heavy duty earth clamp 200A 300A500A1. 50pcs/ctn G.W/N ... ,Brass material,American,Italian,Holland,Japanese type and other models150A, 200A, 300A, 350A, 500A, 600A British screw heavy duty earth clamp 200A 300A500A