oil dag
拌石墨粉滑油 graphite oil
滑油石墨粉滑油 graphite oil
拌石墨粉的滑油 graphite oil
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油气滑铸造工装，采用进口材料精密加工，结晶器冷却壁与石墨环紧密贴合，确保油、气密封效果。
Oil and air lubrication casting tools: the machine manufactured precisely with imported materials, the mold cooling stave fit closely with graphite ring, to ensure oil and air sealing effect.
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