詳細を表示 ansi b16.9 dn250 pn10 304 316 904L stainless steel flanges short butt weld pipe fitting seamless stub end sch10 flange j 接触
詳細を表示 長頸型溶接用フレンズ 鋼製フレンズ DN15, DN20, DN25 1/2", 1", 2", 4", 8" PN6, PN10, PNClass 150, Class 300 6, PN25, PN40ASTM A105ASTM A182 F304/F304L, F316/F316LASME B16.5 DIN 接触