The customized 316L stainless steel pipes were designed with the core specifications focused on the client's actual operating conditions: a single pipe length of 8.8 meters, exceeding the conventional 6-meter standard length limit, effectively reducing the number of pipe connection interfaces and lowering the risk of leakage during fluid transport; the pipes are made of high-purity 316L austenitic stainless steel with a molybdenum content of 2.00%-3.00% and a carbon content ≤0.03%, possessing excellent corrosion resistance, fatigue resistance, and biocompatibility, capable of withstanding the erosion of various cleaning solutions and acid/alkali media in pharmaceutical production without causing secondary contamination of materials. Furthermore, the pipe's outer diameter and wall thickness are precisely matched to the client's process parameters, and the inner wall undergoes precision polishing, with a roughness Ra≤0.8μm, meeting the high cleanliness requirements of the biopharmaceutical industry for fluid transport pipelines.