алт хайчлах тоног төхөөрөмж
409 409L 410 410S 420 420J2 430 stainles steel pipe . Description 400 series stainless steel pipe is used widely The 400 series stainless steel is an alloy of iron carbon alloy chromium Specification Grade 409 409L 410 410S 430 Standard ASTM A240 Thickness 0 2 10 0mm Width 600mm min Length 2000mm 8000mm or as customers request Surface …