About Us Jiangyin Harmony Precision Steel Pipe Co., Ltd. is a specialized manufacturer of high-performance BA (Bright Annealed) and EP (Electropolished) seamless stainless steel tubes. Our clients span across electronics, instrumentation, automotive, chemical, energy, food，pharmaceuticals, and semiconductor。

Located in Jiangyin, Jiangsu Province, we operate a 10,000+ m² workshop with an independent inspection room and complete testing equipment. Our 80 employees, including 6 senior technical professionals, ensure strict quality control at every stage.

We offer small-diameter seamless tubes (OD 3.18–50.8 mm, WT 0.3–5.0 mm) in thin-wall and thick-wall configurations. Material grades include austenitic stainless steels (304/304L/316L/321/316Ti), duplex steels, Monel series, and Inconel series.

Certified to ISO 9001 and UK PED, we adhere to stringent quality and safety standards. Our products are exported to South Korea, Thailand, Indonesia，Malaysia，Taiwan (China)，Singapore, and the United States.

We are committed to providing exceptional value and support, establishing Jiangyin Harmony Precision Steel Pipe Co., Ltd. as a reliable name in small-diameter seamless stainless steel tubes.