Siv: Haum rau gypsum board, ntoo keel, phab ntsa txuas, sib faib phab ntsa thiab qab nthab qab nthab series installation.
Kev kho deg: dub phosphate / xiav dawb zinc / xim zinc plating
Khoom siv: carbon steel
![`4NNW{5P]H${371$2K`O]PI](http://www.hbunisen.com/uploads/4NNW5PH3712KOPI-284x300.png)
