Stainless steel flexible metal hose: Material:SS304,321 SS316L Various dimension Stainless Steel flexible metal hose :Stainless steel pressure-proof metallic hose is made by which stainless steel corrugation knit one or ... )Hose connectors are spherical type, pipe thread, flange end, welded joints etc.Standards: GB699, GB3089, GB3280, GB4240, G B/T12469 Stainless steel flexible metal hose ...