Specialized service field for streamlining and supporting sales activities in manufacturing industries. Provides sales-focused support services including order management system implementation, customer database construction, quotation and proposal creation support, sales process optimization, CRM implementation support, sales staff training, sales material creation services, and sales strategy planning support. Includes sales support tools and consulting services tailored to manufacturing-specific technical sales, B2B transactions, long-term contract management, and complex specification handling. Distinguished from production management and technical support, this is an intangible service category specialized in sales improvement and customer relationship enhancement.