<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>3
<FILENAME>crec10qsbex312033107.txt
<TEXT>
                                                                    Exhibit 31.2


                  CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

                PURSUANT TO RULE 15d-14(a) (17 CFR 240.15d-14(a))

          (AUTHORIZED BY SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002)

I, Mingda Rong, Chief Financial  Officer  (principal  executive  officer) of the
Registrant,  China Recycling Energy Corporation ("China Digital Wireless,  Inc."
prior to March 8, 2007), certifies that:

     1. I have  reviewed  this annual  report on Form 10-QSB of the  Registrant,
China Recycling  Energy  Corporation  ("China Digital  Wireless,  Inc." prior to
March 8, 2007).

     2. Based on my knowledge, this report does not contain any untrue statement
of a  material  fact or omit to  state a  material  fact  necessary  to make the
statements made, in light of the circumstances  under which such statements were
made, not misleading with respect to the period covered by this report;

     3. Based on my knowledge,  the financial  statements,  and other  financial
information included in this report, fairly present in all material respects the
financial condition,  results of operations and cash flows of the small business
issuer as of, and for, the periods presented in this report;

     4. The  small  business  issuer's  other  certifying  officer(s)  and I are
responsible for establishing and maintaining  disclosure controls and procedures
(as  defined  in  Exchange  Act Rules  13a-15(e)  and  15d-15(e))  for the small
business issuer and have:

     a)   Designed  such  disclosure  controls  and  procedures,  or caused such
          disclosure   controls  and   procedures  to  be  designed   under  our
          supervision, to ensure that material information relating to the small
          business  issuer,  including its  consolidated  subsidiaries,  is made
          known to us by others within those entities,  particularly  during the
          period in which this report is being prepared;

     b)   Evaluated the effectiveness of the small business issuer's  disclosure
          controls and procedures  and presented in this report our  conclusions
          about the effectiveness of the disclosure controls and procedures,  as
          of the  end of the  period  covered  by  this  report  based  on  such
          evaluation; and

     c)   Disclosed  in this  report any change in the small  business  issuer's
          internal  control over financial  reporting  that occurred  during the
          small business issuer's most recent fiscal quarter (the small business
          issuer's  fourth fiscal  quarter in the case of an annual report) that
          has materially affected, or is reasonably likely to materially affect,
          the small business issuer's internal control over financial reporting;
          and

     5. The small  business  issuer's  other  certifying  officer(s)  and I have
disclosed,  based  on our  most  recent  evaluation  of  internal  control  over
financial  reporting,  to the small  business  issuer's  auditors  and the audit
committee  of the  small  business  issuer's  board  of  directors  (or  persons
performing the equivalent functions):

     a)   All significant  deficiencies and material weaknesses in the design or
          operation  of internal  control  over  financial  reporting  which are
          reasonably  likely to  adversely  affect the small  business  issuer's
          ability   to  record,   process,   summarize   and  report   financial
          information; and

     b)   Any fraud, whether or not material,  that involves management or other
          employees who have a significant  role in the small business  issuer's
          internal control over financial reporting.


                                                         SIGNATURE

Date: May 15, 2007                                       /s/Mingda Rong
                                                         --------------
                                                         Mingda Rong
                                                         Chief Financial Officer


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