Place of origin Changzhou.China Application Drilling Trenching Mining and Tunnelling Recycling Certification ISO9001:2008 Material ASTM4142/42CrMo Port of loading Shanghai Packing Wooden case or Iron case, Carton or Plastice box Minimum order 500 PCS Payment terms TT or L/C Supply ability 50,000 PCS/Month Delivery time 4-8 weeks