After sell BXBIO would provide install plan for custom to confirm, after that, experienced engineer would come to site to install and pilot. Training user while installing and piloting, then provide record, training data and tools for pilot. BXBIO provide multi-level quick-response for user, after report engineer would provide solutions, then come to site while it couldn’t be solved by phone. BXBIO provide use right of patent and proprietary technology, basic engineering design and technology data, and detailed document of maintenance. BXBIO would phone user irregularly to get the situation of equipment, then give some advice to keep the equipment work functionally.