The diameter (opening position , outer painting) of this branch pipe is not correct. It must be fabricated in accordance with the drawing.
这一支管通径（开的位置，外部涂装）不对，一定要按照图纸施工。
The diameter (opening position , outer painting) of this branch pipe is not correct. It must be fabricated in accordance with the drawing.
这一支管通径（开的位置，外部涂装）不对，一定要按照图纸施工。
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