Our company provides nucleic acid testing equipment accessories to Xi'an Tianlong Technology Co., Ltd. Due to high product requirements, high existing costs and low production capacity, our company changed the design according to product requirements and trimmed the die-casting mold, which greatly reduced the difficulty of production and increased production capacity, timely supply during the epidemic, solved the customer's demand for cost and production capacity, and was recognized by customers. The customer has not only continued to cooperate with our company after the epidemic, allowing our company to develop new products, but also introduced Shanghai Kehua Biotechnology Co., Ltd. to our company, and a cooperative relationship has been established.