... Poor tempo painting 移印不良 Under plating 电镀不足 Screw rust 螺丝生锈 Packing defect description( 包装缺陷描述) ...
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rust on screw 螺丝生锈
Use blind boards are possible, and leakage for a long time, screw rust, as useless, insulated piping is not very convenient.
用盲板有渗漏的可能，还有就是时间长了，螺丝锈死，一样没用，保温管道还不是很方便保温。
If possible, screw in the junction box and head of the Department points Vaseline coated to prevent rust.
如果可能的话，在接线盒的螺丝和线头处涂上点凡士林，以防再生锈。
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