weldolet fittings 1.High quality 2.Competitive price 3.Materials: AISI ... & NPS 1"-6"Materials: AISI 304, 304L, 316LThese Sanitary fittings meet the special demands of the sary processing industry. Components ... projects.We also produce stainless steel valve and sanitary fittings as follows:1.butterfly valve:welded butterfly valve,threaded ... check valve,clamp check valve,threaded check valve.4.fittings.