stainless steel corrugated metal tube DN:1/4"-16" S.S304&braid JIS,AISI,GB. ... hose standard annular/spiral type stainless steel corrugated metal tube metal corrugated tube use SS304 (0 Cr18Ni9) or SS316L (00 Cr17Ni14Mo2) materials ... resistance, light weight, small size, softness Flexible metal hose`s three major role:Reduce the installation pressure of the pipeline,Compensation ...