SALES CONTRACT OF INDUSTRIAL PRODUCTS

                                                                    Exhibit 10.4

                      SALES CONTRACT OF INDUSTRIAL PRODUCTS
                      -------------------------------------
                                                                       NO.: 02598
                                                               SIGNED AT: Tai'an
                                                         DATE: December 15, 2002

This contract is made and entered into by and between   Shandong Shengda Chemical
Machinery Co., Ltd (hereinafter   referred to as the Seller) and Shandong Shengda
Chemical   Co., Ltd   (hereinafter   referred to as the Buyer);   whereby the Seller
agree   to sell   and the   Buyer   agree   to buy the   commodity   mentioned   in this
contract subject to the terms and conditions stipulated below:

Article 1: Object, Quantity, Price and Date of Delivery

NAME OF COMMODITY: Crystal-making Pump

UNIT: PIECE

QUANTITY: Two

UNIT PRICE: RMB 264,569.19 yuan

TOTAL AMOUNT: RMB 529,138.38 (Five hundred and twenty-nine thousand, one hundred
and thirty-eight point three eight) yuan

DATE OF DELIVERY: February 25, 2003

Article 2: QUALITY STANDARD

The seller will manufacture the objects according to the National   Standards and
the drawing sheet provided by the Buyer.

Article 3: TERMS AND TIME LIMIT OF QUALITY   ASSURANCE   OF THE SELLER:   1 Year of
Quality Warranty

Article 4: TITLE TO THE GOODS SHALL BE PASSED   UPON   DELIVERY;   HOWEVER,   IF THE
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