Finishing craft should be processed under the environment of 0-40 degree centigradetemperature and less than 80% humidity.
涂饰工艺要在温度0至40摄食度，湿度小于等于80%的环境下进行。
2
The heating system and can be heat to provide heaters to 4 degrees centigradetemperature to 5 0 0 degree the underground pipelines, through the water to supply heating (figure 4).