1.Swing shearing knives for industrial machine cutting metal 2.Various specification to meet your request 3.Long working life High cost performance, ISO9001:2000, Punctual delivery Materials: H13, H13K, 5CrW2Si, 6CrW2Si, Cr12MoV,HMB,HMKJinhai company has been approved by ISO9001 Quality Management System Certification, High-Tech Enterprise Certification, High-Tech Product Certification and the ...