Interested in Nickel Foam

RFQ Details

Dear Sir or Madam,

I am searching proper Nickel Foam Plates to buy, but I have some questions about Nickel Foam Plates need to figure out first, I hope you could help me with the following questions:

1.About the Pore size, could you please give me detail explanation about 40ppcm(100ppi)? What ppcm and PPI stands for? And I want to know the diameter of the pore in micro-meter, not ppcm or ppi, and the distance between two pores in micro-meter.
2.Do you offer 210*210mm Nickel Foam Plates?
the dimension of Nickel Foam Plates, I hope the thickness is 1.00mm-1.50mm or less, is it available from your company to buy?
4.How about the price?

Thanks!

Qun