
??? ?? ??? ??? ??? ???????? ??? ?????.
??? ???: ?? 1mm? ??? ???, ?? 0.32mm, ?? ? 5cm? ?? ??? ???.
?? ?? ??: 1 ? ??? 2?? ?? ??? ??? ??? ?, ? ?? ????? ?? ??? ??? ??? ????.??? ??? ??? ????? ???? ??? ???? ????(??? ? 1cm?? ??? ???? ??? ? ??? ????).
???: ????? 100g? 3??? 100ml? ???? 13N KOH ??? ??? ?? ??? ???.
??? ??? ??? ??????.
http://www.tungsten-carbide.com.cn/korean/tungsten-carbide-blade-bar.html

?? ?? ?? ??? ??
??(????)? ??(???)? ??? ?? ???? ?? ??? ????.?? ??? ??? ???? ??? ??? ??? ???? ?? ??? ???? ??? ????.? ??? ???? ??? ? 3-10?, ?? ???? ??? ? 1? ???.??? ??? ??? ?? ??.?? ?? ? ??? ???? ??? ???? ???? ??? ??? ??? ?? ??? ??? ??? ? ??.
 
					 
						
		![[Korean] ??? ??? ?? ??? ?? ??? ??? ???? ??? ??? ?? ??? ?? ??? ??? ????](http://m.sscollege.cn/jp/wp-content/uploads/2025/10/yellow-tungsten-oxide-nanopowder-applied-for-heat-insulating-energy-saving-glass-picture-214x140.jpg) 
									 
									![[korean] ?? ?? ?? ??? ??? ??? ?? ?? ?? ?? ?? ??? ??? ??? ?? ??](http://m.sscollege.cn/jp/wp-content/uploads/2025/10/tungsten-oxide-nanopowder-applied-for-transparent-heat-insulation-glass-coating-picture-214x140.jpg)