黄铜闸阀的简单介绍1/2"--4"DN:15--93inoil,water,gas. Body:brassBonnet:brassGasket:heatresistingfiberWedge:brassStem:brassScrewedring:brassPacking:ptfePackingnut:brassHandwheel:steelNut:steel黄铜闸阀的详细信息1/2"--4" DN:15--93 in oil,water,gas. Body:brass Bonnet:brass Gasket:heatresisting fiber Wedge:brass Stem:brass Screwed ring:brass Packing:ptfe Packing nut:brass Handwheel:steel Nut:steel |