सुन्दर समुद्री शहर-यान्नीमा अवस्थित छ। Laizhou Laihua Testing Instrument Factory is an ISO9001 quality system certified enterprise specializing in the production and sales of hardness tester and metallography preparation. उत्पादनहरू EU CIE प्रमाणीकरण प्राप्त गरेको छ।