§12A-2-207.

§12A-2-207.
   
   (1) A definite and seasonable expression of acceptance or a written
   confirmation which is sent within a reasonable time operates as an
   acceptance even though it states terms additional to or different from
   those offered or agreed upon, unless acceptance is expressly made
   conditional on assent to the additional or different terms.
   
   (2) The additional terms are to be construed as proposals for addition
   to the contract. Between merchants such terms become part of the
   contract unless:
   
   (a) the offer expressly limits acceptance to the terms of the offer;
   
   (b) they materially alter it; or
   
   (c) notification of objection to them has already been given or is
   given within a reasonable time after notice of them is received.
   
   (3) Conduct by both parties which recognizes the existence of a
   contract is sufficient to establish a contract for sale although the
   writings of the parties do not otherwise establish a contract. In such
   case the terms of the particular contract consist of those terms on
   which the writings of the parties agree, together with any
   supplementary terms incorporated under any other provisions of this
   act.