In the case of lower ambient temperature and used temperature, low viscosity oil may be used.

环境温度和使用温度较低时, 可选用黏度较低的油液.

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A low viscosity oil designed for punching pre - coated aluminium sheet, copper tube expansion and bending.

低粘度金属加工油,适合于空调行业中预涂铝鳍片的冲孔加工, 也适合于铜管的弯管和胀管加工.

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