Product Name: no straight edge head <br>Origin: Wenzhou <br>Attributes: quality, independent production <br>Products belong to the system: no straight edge Head Series <br>Material: 304,304 L, 321,316,316 L, 310S and other materials. <br>Common Standards: JB/T4746-2002, JB/T1619-2002, GB16749-1997 <br>Test: JB/T4746-2002 JB4730-94 <br>Applications range: petroleum, electronics, chemical, pharmaceutical, textile, food, machinery, construction, nuclear power, aerospace, military and other industries. <br>Head prices by: Product standard weight × price or electricity Yee <br>Suppression equipment: pressure drum machine, spinning machine, hydraulic press <br>Product Features: forging excellent, smooth surface, acid-alkali-high temperature, prices reasonable, pleasing in appearance, texture performance strong. <br>No straight-edge head (ball crown-shaped head) Brief Introduction: shape - no straight-edge hem part of the head start is a rectangle, rectangle width = hem of the high-h, length = π × D (π = 3.14, D is the diameter). Cone-shaped part of the commencement of such a fan-shaped, fan-shaped cone of radius = Su-line length (l), fan of the central angle α = D × 180 / l (unit: degrees) surface area = π × D × h (hem) + π × D × l / 2 (cone). No straight edge head way for high-precision CNC machining lathe, normal lathe fine cars, welding and other processing. Nominal pressure: sch5s, sch10s, sch20s, sch30s, sch40s so. <br>If you head over little-endian, we must remove the truncated part (a small fan-shaped). <br>Standard (JB/T4746-2002) head, Size ∮ 76-3000mm thickness of 2-30cm, the weight of compliance, <br> <br>