We, Qingdao Shuangjunli Machinery Co.,LTd, are specialized in manufacturing of the ventilation system, feeding and drinking system Equipment.

Our fans has obtained CE certificate and Test Report from China Agricultural University .

Now plan to test our products in BESS LAB in the USA. We exported our products to many known company, such GSI,PLASSON,SKOV,KUTLUSAN,etc. So we  believe it’s a good supplement to your product offering.

The quality of our cooling pads is improved greatly now. Before the weight of one paper is 95g, now it is 105g per paper, thicker than before. And the quality of the glue we use now is much better than before. The cooling pad will not get loose and much stronger than before.

We also supply the complete feeding and drinking system. We could assure you the highest quality at the best price.