Pre-galvanized square/rectangular tube: Pre-galvanized square/rectangular tube is made of hot dipped galvanized steel strip directly.
Hot dipped galvanizedsquare/rectangular : Hot dipped galvanized square/rectangular tube owns thicker zinc coating than pre-galvanized square/rectangular tube. Black tubes will be dipped into zinc pool for galvanizing.
Electro galvanized square/rectangular : The technology of electro galvanized square/rectangular tube is similar to hot dipped galvanized tube, but the thickness of zinc coating is less than hot dipped galvanized tube.
Painted square/rectangular:Painted square/rectangular to remove the rust and clean the oil first and then paint the required color paint.
Standard:GB/T6728:2002 , ASTM A500 , JIS G3466 , EN10210 ,EN10219
Steel Grade:
GB/T6728:2002 : Q195 , Q235 , Q345
ASTM A500:GR. A , GR. B, GR. C , GR. D
JIS G3466 : SS440,SS540
EN10210, EN10219: S235JR ,S275JR,S355JR, S355J2H
| Name | Size | Wall Thickness | Length |
| mm | mm | m | |
| Square tube | 10x10-500x500 | 0.6-25.0 | 1-12m |
| Rectangular tube | 20x10-200x400 | 0.7-13.0 | 1-12m |
Tianjin Teni Import & Export Co.,ltd was founded on 2010. It is close to Tianjin Xingang port. The geographical position is superior, the traffic is very convenient.
The company now has over 100 employees, including more than 15 senior technicians. Now,we have 3 hot dip galvanized steel pipe lines, 4 hollow section production lines,3 ERW steel pipe production lines. The annual output is 200,000 tons. Our main products are galvanized steel pipe,ERW steel pipe, square/rectangular steel tube,seamless steel pipe and galvanized steel coil.
Every year we attended exhibition at home and abroad, visited customers and also welcome customers visiting our factory.
Q:Can you accept a trial order only for several tons?
A:We can ship the regular specifications with LCL service.
Q: Do you provide free samples?
A: Yes, we could offer the sample for free, with the cost of freight paid by customer.
Q:How long is your delivery time?
A:Generally it is 7-10 days if goods are in stock or as your order requirement.
Q:What is your terms of payment?
A: Payment<=8000USD, 100% in advance.
Payment>=8000USD, 30% T/T in advance ,balance before shippment. Or L/C at sight (For big order, LC at 30-90days can be acceptable)