Our company needs the following metals/alloys as specified, 
productions companies are welcomed to send 
their specifications and prices for further negotiations:

1. Steel with precision temperature expansion factors:
Russian standard 29 hk(nk)known as kovar used with
similar glass of c48(s48)factor(cobalt nickel and steel) 
with temperature expansion factor 48
Or
Russian standard 47 HD (47nd) used with c90-1(s90-1)
glass with temperature expansion factor of 90(nickel 
aluminum and steel).
Needed wires of 1.5 mm diameter and 0.8 mm thickness.
2. Soft steel pipes with outer diameter of 5.5 mm and 
wall thickness of 0.6 mm.
3. Steel tapes with spring ability, and working temperature 
of 500 degree centigrade of 0.2mm and 0.3mm thickness.
4. Hard aluminum(known as dural) lists with 0.3 mm 
thickness.
5. Brass pipes with 6 mm diameter and wall thickness of 
1.8 and 5.5 mm diameter with wall thickness of 0.6mm.
6. Brass tapes of 0.6 mm and 0.8 mm thickness
7. Bronze(brb-2)having 98% copper wires of diameters 
0.2,0.25 and 0.3mm and tapes with 0.15,0.2 and 0.3 mm 
thickness.

For inquiries please contact us directly sending your 
specifications and prices.