slip on flange ansi #150 rf size:1/2"-48" Place of Origin:ZhangQiuRuiye China(mainland) materail: cs ... oil, standard:ansi b 16.5pressure:class300size:1/2"-48"u,weight:0.63-540kgu,p:1.27-804.6dollars material:cs q235type:slip ... ,plate ,blind ,lap joint ,threaded,socket welding flange .standard:ansi16.5 ,din ,gost,en 1092,bs 4504fittings :elbows ,caps ,tees ,reducersstandards ...