ASTM A403 WP321 180도 복귀 굴곡 NACE 준수

스테인레스 강 팔꿈치
September 07, 2026
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This video explains the key features and industrial applications of the ASTM A403 WP321 180° Short Radius Return Bend. We provide a clear walkthrough of its NACE MR0175 sour service compliance, material properties, and proper installation guidelines for demanding environments like oil, gas, and chemical processing systems.