Product Scenario: Product Details: About Us Shenyang Roundfin Trade Co., Ltd. We always try to be the best supplier of laboratory equipment in China. Our products are in good sales in USA, Pakistan , Spain, Russia, Ukraine, Iran, Brazil, Argentina etc, and enjoy very good reputation from the clients. We always try our best to support you the good quality products with good prices. We are looking forward to hearing any voice from yours... Plesase contact us .