Machine chain 1. 40Mn, 45Mn quality alloy steel 2. carbonized harden 3. competitive price 4. trend to long cooperation Bafang Machine chain for crawler asphalt paver1,P80F7,P80F8,P80F17,P80F19,P80F212,Non-standard attachment: According to drawSPECIFICATION:PACKING: Machine chain for crawler asphalt paver