常州市天展鋼管有限公司成立于2004年，憑借董事長26年行業經驗積累和公司多年發展，年產能可達6萬噸。天展是專注于鋼管研發的技術型生產廠家，是鋼管行業的技術引領者。

天展專注定制生產GB/T8162、8163、3639優質無縫鋼管，憑借自主研發的先進設備，為中小型企業提供小批量定制，且原材料、內外尺寸公差即一致性、內外表面光潔度、直線度、機械性能、偏心、異型、合金鋼、小口徑厚壁無縫鋼管皆可定制，可為客戶提供一站式服務與整體解決方案。定制外徑范圍Φ10-Φ120mm，壁厚1-20mm。全流程自主生產，無外協，另有鋼管割斷、車加工等配套服務。每批鋼管經過30+質檢工序，60+檢驗參數，成品根根檢驗。

天展的無縫鋼管廣泛應用于汽車零部件、機械加工、鑿巖釬具等領域，與寶馬、中國建筑科學院、北京冶金、中國水電、中國核電、中國平煤集團、中車、美的等客戶保持良好的長期合作伙伴關系，已榮獲汽車行業質量體系認證IATF16949和ISO9001。

Changzhou Tenjan Steel Tube Co., Ltd. was founded in 2004. The annual production capacity can reach 60,000 tons under years of development and the chairman’s 25-year experience in steel tube industry. We are a leading technical manufacturer in the seamless steel tube industry.

TenJan is specialized in custom production of high quality seamless steel tubes under international standards ASTM A519, ASTM A106, ASTM A500, ASME SA500, DIN2391, DIN1629, EN10305-1, DIN17121, EN10297-1, JIS3441, JIS3444 and JIS3445. Raw material, internal and external dimensional tolerances and consistency, internal and external surface roughness, straightness, mechanical properties, eccentricity, special shape, alloy steel, small-diameter thick-walled seamless steel tubes all can be customized. We can provide customers with one-stop service and overall solutions. The production range for outer diameter is from 10 to 120mm and for wall thickness is from 1 to 20mm. TenJan produces independently without outsourcing. In addition, there are value-added services of cutting, lathing and etc. Each tube is inspected strictly with over 30 quality inspection processes and 60 test parameters.

Our products have been widely used in auto parts, machinery processing, drilling and other fields. We have long-term relationship with customers such as BMW, MCC, CNNP, CRRC, Midea, Sinohydro, China Pingmei, China Academy of Building Research and so on. We have won the national automobile industry quality system certification IATF16949 and ISO9001.