Light should be left in place for winterization.

灯应该被适当留在防冻处理地。

C. Winterizing: Light should be left in place for winterization.

防冻：灯应该被适当留在防冻处理地。

C. Winterizing: Light should be left in place for winterization .

防冻：灯应该被适当留在防冻处理地。

Test cocks are positioned at the lowest point of the valve for winterization draining.

测试旋塞定位在阀门的最低点,适用于冬季排放.