Our company supplies mailbox frames to British customers, and the cover part needs to be manually deburred, which is inefficient and expensive (the cost was 0.34 yuan/pcs before improvement). We asked engineers to make automatic deburring equipment, which is efficient and reduces the deburring cost from the original 0.34 yuan/pcs to 0.14 yuan/pcs. It saves labor, improves efficiency and product quality, and is recognized by customers. We have been cooperating with customers since 2014.