котельные части котла углерода бесшовных стальных труб,

boier parts ofcarbon boiler seamless steel tube(1)Steel Grade: SA192, STB340, CFS320, St35.8, STBH 340, TS34c; (2)Standard: ASTM A192, JIS G3461, BS3059 , DIN17175, KS D3563, NFA49-245 ;(3)Specification : OD: 10mm-114.3mm (0.4055"-4.5"), WT: 2mm-22mm (0.0787"-0.8661"); (4)Dimension tolerance: O.D.: +/-0.08mm, W.T.: +/-10%; (5)Surface: oiled or black painted to prevent rust; (6)Marking: as per customer's requirement;(7)Application: this product applies to high pressure boiler and heat interchanger