Investment Casting Valve 1. Investment casting valve, single piece design full bore, blow out proof stem with ss 304/316 working parts, screwed end 2. Investment casting valve, three piece design full bore, blow out proof stem with ss 304/316 working parts, flanged end asa 150# 3. Investment casting valve, three piece design full bore, blow out proof stem with ss 304/316 working parts, screwed ends All kind ic valves