... JIS,AMSE 3, material: INOX AISI304,304L,316,316L Stainless steel bolt 1, The material can be SUS304,304L,316, or ... 316L.2,The standard: DIN, ISO, RJT, IDF3, ... to install and only uses stainless steel AISI304 L,316L, carbon steel.The fittings used in Zhengkang press fitting ... buildings, classy hospitals, star hotels water supply projects. hex bolt