20×20 black square erw steel pipe

20×20 black square erw steel pipe

Outer Diameter 20*10-400*600mm
Wall thicknes 0.8-12mm
Length 1-12m customized
Material Q195, Q215 ,Q235 ,Q345, Q195-Q235
Standard ASTM A500,GBT 6728,GB T 3094
Zinc Coating Hot Dip Galvanzied:>200g/m2
Certificate ISO 9001-2008
Technique Welded / ERW / Cold drawn

Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
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