... Oil Port Shenzhen Meishi Mawan Depot Limited. Moreover, in April 2009, Sunyear supplied the intelligent diesel pump( long axis style) ... constant head/check valve applied to Mawan Depot.In April 2009, with a larger demand of capacity expansion, the fire ... intelligent control, easy to operate and advanced technology. In June 2009, Sunyear already completed the installation, testing and guide training of ...