Service covers both ends of an order. Before purchase, the team advises on grade selection and provides TDS sheets and samples; after ordering, production and shipment are tracked against the contract, and a batch-level COA travels with each lot. If a quality issue arises on arrival, it is logged, re-tested against retained samples and answered with a written disposition. Technical questions are handled by process engineers, who can visit the customer's plant to adjust processing parameters when a trial or a new application requires it.
Direct access to chemical engineers and application specialists for product selection and process optimization.
Real-time order status updates from production through shipping with proactive delivery notifications.
Complete access to safety data sheets, specifications, and certificates of analysis upon request.
Dedicated follow-up service ensuring product performance and customer satisfaction throughout the lifecycle.
Inquiries are sorted into four categories — sales, technical support, quality claims and logistics — logged centrally, then routed to the responsible account manager or process engineer, so the customer deals with one point of contact instead of several. Overseas buyers can correspond in English, and technical discussions across time zones can be arranged as scheduled video calls. Contact details are listed on the website's contact page; when requesting a quotation, stating grade, quantity, destination port and packaging requirements together helps return a complete offer in one round.
+8618136850665
sales4@liwei-chem.com
Within 24 hours
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