... 1, spec.: 12-50mm, wall: 0.8-2.0mm 2, standard: DIN, JIS,AMSE 3, material: INOX AISI304,304L,316,316L ... material can be SUS304,304L,316, or 316L.2,The standard: DIN, ISO, RJT, IDF3,The specification is ranged from 15 ... other government buildings, classy hospitals, star hotels water supply projects. hex bolt