Apart from advanced core process technology, we prioritize comprehensive after-sales technical services and professional training for clients. We provide a 10-hour global response service for customer inquiries and technical issues, and our professional technicians can be dispatched to any worldwide location within 72 hours.   Benefiting from the high stability and reliability of our process design, WEIXIAN sulfonation plants achieve an annual operating rate of 330 days. A full one-year warranty is provided for all complete sets of equipment. Meanwhile, we recommend clients to equip with our standard spare parts kits for timely replacement of wearing parts, which are supplied at cost price.   WEIXIAN provides a full range of professional technical services covering:   1. Free ongoing technical consultation. 2. Pre-project feasibility study analysis. 3. Quotation and technical proposal for integrated turnkey sulfonation plants and individual equipment. 4. Upgrading, renovation and technical revamp of existing sulfonation production lines. 5. Customized design and engineering of turnkey sulfonation plants and supporting equipment. 6. On-site plant installation and assembly service. 7. Remote and on-site technical support as well as complete plant commissioning. 8. Professional operational and maintenance training for client technical personnel. 9. All other technical services related to sulfonation process production.