... 4)ISO9001:2000certified 5)High level surface finish Yinhai is the manufacturer of Symons,SANDVIK,HP series cone crusher bronze parts ... 20 years. We are committed to precise materials and dimensions and superior quality.Since 1982,we satisfy our domestic ... cone crusher, hydraulic generator ,rubber machinery,cement machinery and other mining machinery Features:Material:Pb15Sn7/C93800supply symons 3', ...