1) Grade : Invar , kovar,  1j30, 1j38,1j36,1j50,426 ,476, Ni19Mn7,Ni20Mn6 Ni16Cr11.

2) Produce Standard : ASTM A 240  ASTM A 480  UNS

3)Surface : 2B  & Bright Annealing

4) Size :  Thickness :  0.1mm ~ 3mm

              Width:         5mm~ 450 mm

5)mill certificate : EN1024-3 3.1 B

6)Packing : each coil with water proof wrapped , then put on suffocated wooden pallet