professional manufacture of precision alloy coils and strip, Invar, Kovar, magnetic compesnation alloy , soft magnetic alloy stainless steel :1) Grade : Invar , kovar, 1j30, 1j38,1j36,1j50,426 ,476, Ni19Mn7,Ni20Mn6 Ni16Cr11.2) Produce Standard : ASTM A 240 ASTM A 480 UNS3)Surface : 2B & Bright Annealing4) Size : Thickness : 0.1mm ~ 3mm Width: 5mm~ 450 mm5)mill certificate : EN1024-3 3.1 B6) ...