china factory 15x15 black iron square tube

china factory 15x15 black iron square tube

 Other sizes can be customized 

FIVE STEEL (TIANJIN) TECH CO., LTD is located in Daqiuzhuang, Tianjin, which is the biggest welded pipe production base in the world.After years of hard work, we have formed a diversified investment pattern of development, and in accordance with the requirements of new industrialization, we have given full play to their own advantages to achieve the scale, structure, quality and efficiency overall promotion.

We have made investment for some steel pipe manufacturers and agricultural greenhouse factory.We are specialized in selling galvanized steel pipe,hot rolled steel pipe, greenhouse and so on.After several years of development, We have bulid a long partnership. 

Cooperated with customers from more than 70 countries in the world,like Canada, Australia, Singapore, Thailand, Korea, Vietnam, Mexico,Chile, Peru, New Zealand and so on. The annual output is 0.70 million tons.

Different galvanized steel pipe:

1.Pre-galvanized:
Pre galvanized steel pipe is made of hot dipped galvanized steel strip directly.
Zinc coating:40-60g/sm ,If need more zinc coating ,we can make processing as the order.(Thickness is 0.7mm-4.5mm )

2.Hot dipped galvanized:
Hot dipped galvanized pipe has thicker zinc coating than pre galvanized pipe. Black steel pipe will be dipped into zinc pool for galvanizing.Zinc coating could be:200-500g/sm

FAQ   

1. Q: Are you a factory or a trading company?

A: We not only have our own factories but also have shares in some other enterprises.

2. Q: Can you provide samples?

A: Yes, if the sample is available in stock.

3. Q: Can you arrange the shipment?

A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.

4. Q: What is the delivery time?

A: It is based on the order, normally 15 - 20 days after receiving the deposit or L/C at sight.

5. Q: Do you have quality control?

A: Yes, we have gained BV, SGS authentication.

6. Q: What are your payment terms?

A: 100% irrevocable L/C at sight. Or T/T, 30% advance, and balance against the copy of B/L within 3-5 days.

7.Q: What is your MOQ?

A: 10 tons  for common size, or mix sizes for a 20 GP container.

china factory 15x15 black iron square tube