... orders 3, Quick delivery 4, strict quality control Partname: 45 Degrees O-Rings Mould1. Mould for all kinds of rubber ... 2. Cavity number: Single, multi-cavity3. Cavity/core steel: P20, 45#, Cr12MOV etc.4. Products Material: NBR, FPM, CR, EPDM, ... seal moulding, which has advantaged geographical environment and convenient traffic.We have numerical control lathe, ordinary lathe, milling machine, carved ...