Malleable iron fittings, hex nipple , mateiral is malleable iron 300-6. Black surface or hot dipped surface(white). Sand Casting , hot dipped with thread Machining. Standard:…
Lost Foam Casting or Sand Casting Method Alloy steel castings, GX40CrNiSi25-20,40Cr25Ni20Si2,GX30CrNiSiNb24-24,GX25CrNiSi20-14, GX30CrSi6 or according to customers’ requirements