Our company is manufacturer of fire fighting armature system STORZ.We produce couplings mainly from aluminium and ZnAl alloysSpecific alloy requirements can be discussed. We use mostly AK-11 and DIN-226 alloysCouplings are bein produced by die-casting, which quarantees very high pressure resistas and smooth surface. After casting, items are bein machined on CNC's and then polished with stainless steel balls fi0,2mm We are at the moment exporting our products to Germany, Belgium, Finland, Czech Republic, Slovakia and Romania.If you are looking for great quality products in really competetive prices, please contact us directly: l.bywalec(at)korus.plRegards,Lucas BywalecI/E Manager "KORUS"