Core Viewpoint - The company, Sudar Co., announced on August 21 that providing after-sales service for main engine manufacturers is a form of on-site operation service, which is an effective customer acquisition method despite its low revenue contribution [1] Group 1 - The company offers after-sales service for self-repaired equipment, indicating a commitment to customer support [1] - The revenue contribution from this after-sales service business is relatively low, but it serves as a strategic tool for customer acquisition [1]