“Nation first; world first.”       The first is more than the biggest in enterprise scale. It also covers the first in       competition advantages under the premise of market orienting. We are dedicated to       training for first-class brains, carrying out first-class management, prod      Donglong Enterprise Spirit      Unity, Pragmati, Innovative, enterprising      Donglong Enterprise Tenet      Concentric, Cooperatings, Sharing      Donglong Quality Guideline      Improve product by ourselves to unceasingly satisfy our customers