Gray to grayish black amorphous fine particles or powder, with very slight luster; exposed to air and moisture, easy to oxidize, soluble in dilute acid, insoluble in water. 6 Inch Floor Trap,6 Inches Floor Drain,6 Inches Square Shower Floor Drain,6 Inch Stainless Steel Shower Drain Kaiping City Jinqiang Hardware Products Co.,Ltd , https://www.jqfloordrain.com
