MENSU is professional steel tubes supplier from Ningbo,one of the top ten civilized cities in China. We have 20-years manufacturing and 10-years exporting experience. 

Our factory was established in 2002,is located in Zhangjiagang City,it is "Yangtze River Economic Belt",with a superior location and rich resources. Additionally,we  now have 100 friendly cooperated factories and stockists.

The first batch of goods we exported to foreign countries was seamless precision steel pipes used for auto part in 2013.

We have cooperated with more than 200 customers in more than 30 countries around the world, the international well-known brands we have worked with are Mercedes-Benz,GM,TOYOTA,Hyundai,FAG,TPI,TPB,UOP,RSB,etc.

Our main products are: Seamless Precision Steel Tubes,Boiler&Heat Exchanger Tubes,Bundy Tubes, Exhaust Tubes, Honed Tubes, Piston Rods, Pure Seamless Stainless Steel Small Diameter Tubes,Capillary tubes. Products have passed ISO14001,ISO9001,TS16949 certification, the high performance cost ratio has won customers  satisfaction and recognition!

Strong deliverability
Rich export experience
Wide range of applications
High performance cost ratio
Tubes for Boiler&Heat Exchanger
MENSU has excellent quality and factory price for Boiler&Heat Exchanger steel tubes with about 10-years manufacturing and exporting experience. Technical standards: ASTM A178/A179/A192/A209/A210/A213/A312/A249/A269/B111,BS3059,DIN17175,EN10216,GBT3639,GB3087,etc. Steel grade for carbon steel: SA179,10#,20#,ST35.8,ST45.8,P195GH,P235GH,etc. Steel grade for alloy steel: T2,T5,T9,T11,T12,T21,T22,T91,T92,15CrMoG,12Cr2MoG,12Cr5MoG,12Cr9MoG,15Mo3,16Mo3,C71500,Inconel625,Inconel825,etc. Steel grade for stainless steel: TP304,TP304L,TP310S,TP316,TP316L,TP316Ti,TP321,TP347H,TP410,TP446,S32205,S32750,S32760,etc
Precision Steel Tubes
MENSU has excellent quality and factory price for seamless precision steel tubes and welded precision steel tubes, DOM tubes, which are widely used for automobile (shock absorber, gas spring, fuel injection, engine system, exhaust system), truck, bearing,machinery equipment, ect. We have over 10-years manufacturing and exporting experience for precision steel tubes used by international famous brands, such as: Benz, GM, TOYOTA, Hyundai, FAG, TPI, etc. Technical standards: ASTM A519, DIN2391, DIN2394, EN10305-1, EN10305-4, ASTM A513, DIN2393, EN10305-2, etc. Steel grade: E235, E355, ST37, ST52,1010,1018,1020,1026,10#,20#,45#,4130,30CrMo,4140,42CrMo4,100Cr6, GCr15, SUJ2, HC340, HC420, SPCC, SPHC, AISI1008, Q195, Q235, DC01, DC03 ,DC04, DC05, DC06,etc.
Bundy Tubes
MENSU has excellent quality and factory price for single wall bundy tubes and double wall bundy tubes,which are widely used for refrigerator,freezer,car brake system, with about 10-years manufacturing and exporting experience. Technical standards: ASTM A254,SAE J526,SAE J525,YB/T 4164,etc Steel grade: BHG1,SHGI Coating: copper coated,white galvanized,PVF,zinc plating-coloring,nylon,etc
Exhaust Tube
MENSU has excellent quality and factory price for exhaust tubes, Aluminized steel tubes, with about 10-years manufacturing and exporting experience. Big diameter and thin wall exhaust tubes or Aluminized steel tubes in sizes of 127*1.2, 127*1.4 ,127*1.5, 101.6*1.2, 101.6*1.4, 101.6*1.5 are our unique and special products, only our factory can produce it. Technical standards: ASTM A513,EN10130,DIN2393,EN10305-2,etc Steel grade: SPCC,SPHC,AISI1008,Q195,Q235,DC01,DC03,DC04,DC05,DC06,etc
Cylinder Tubes
MENSU has excellent quality and factory price for Cylinder tubes with about 10-years manufacturing and exporting experience. Regular sizes we supplied are ID50xOD60mm ID60xOD75mm ID70xOD80mm ID80xD90mm ID90xOD100mm ID100xOD112mm etc Technical standard we can follow:EN10305-1,EN10305-2,ASTM A513,ASTM A519,etc Steel grade we produced:ST52,E355,16Mn,1010,1020,1026,1045,25Mn,etc We’ve exported them to Italy, Russia, Poland, Kuwait, India, etc.
Piston Rods
MENSU has excellent quality and factory price for hollow piston rods and solid piston rods which work as a connecting part of oil cylinder and air cylinder ,with about 10-years manufacturing and exporting experience. Surface roughness: Ra 0.1-0.4 Tolerance: ISO f7 f8 Production process: QT(quenching and tempering),chrome plating. Steel grade: ST52,E355,45#,40Cr,2Cr13,SUS304,etc
Pure Seamless Stainless Steel Small Diameter Tubes
2004 began to develop seamless stainless steel coil, the production of precision instrument tube, material: 304 l, TP304 / TP316L and TP321, TP317L etc., specifications are: OD4mm-38.1mm, WT0.71mm-3mm, small diameter stainless steel straight pipe length of about 4-6.1 meters, stainless steel seamless coil length up to about 500-1000 meters, can also be composed of multi-plate seamless coil butt connection of several thousand meters of super long stainless steel seamless coil; Straight pipe mainly export, suitable for instrument control system, liquid crystal panel, solar panel and other semiconductor enterprises gas transmission pipeline; Seamless stainless steel coil is mainly used in heat exchange coil, fluid, gas, heat tracing coil (heat tracing coil), steam insulation pipeline, high pressure fluid transport pipeline, and suitable for oil drilling platforms, ships and other hydraulic control pipeline, aerospace and petrochemical refining equipment, winding heat exchanger, stainless steel insulation cable, umbilical cable, PVC sheathing stainless steel pipe cable.
Capillary Tubes
Capillary tubes are widely used for medical, electronic, aerospace, food machinery, kitchen utensils and other fields. Technical standards: ASTM A249,ASTM A269, EN10217-7,etc Steel grade: SUS316L,316,321,310,310S,304,304L,302,301,202,201
0086-18268638581 (Mobile/WhatsApp/Wechat)
301-23 Room,Tianjian Lane No.26, Shounan Street, Yinzhou Strict, Ningbo City, Zhejiang Province, CN
You can also consult with our staff directly for the questions.