Tonva Plastic Extrusion Blowing Mold:
1.Thermal oil: adopting the hydraulic oil for the maintenance to get in the inlet of cooling water ,which can play a lubrication, rust-proof role.
2.Maintenance of guiding column: guilding column shoulg be painted a small amount of hydraulic oil, cycle once a month.
3.It needs to be painted rustpreventive if it stops production for long term.
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