Info detail tentang alat kelengkapan pipa baja karbon DN450 90 Gelar pengelasan siku Material: Baja karbon: Astm/asme A234 WPB,WPC Paduan baja: ASTM / ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911 Stainless Steel: ASTM / ASME A403 WP 304-304L-304H-304LN-304N ASTM / ASME A403 WP 316-316L-316H-316LN-316N-316Ti ASTM / ASME A403 WP 321-321H ASTM / ASME A403 WP 347-347H Suhu rendah baja: ASTM / ASME A402 WPL 3-WPL 6 tinggi