And we could design the packing very well. Size,weight, shape and dimension of the counterweight are precise with vacuum process casting. Fine surface and closer tolerance. Our expert engineering and casting technicians are commited to working with you to suggest modifications that reduce cost and extend pot life through improved efficiencies. According to customer's specification and requirement, we could provide right counterweight, on-time delivery and reasonable quotation. The price of the v process counterweight is very competitive.