Product Description:
China factory stainless steel TP347 TP304 TP347H ASTM A213 HFW fin tube, ASTM A312 fin tubesSteel H
Pairs of parallel shaped steel fins are resistance welded to the single pressure tubes (pipes) surface under very carefully controlled conditions.The purpose build welding machine ensures very precise indexing along the entire length of the tubes (pipes) and exact parallel attachment.
Double H 
A development of the single tubes (pipes) version, the 'Double H' design has the steel fins welded onto two tubes at the same time. For applications with cleaner gases the use of 'Double H' can reduce the number of supports required due to its inherent stiffness.
Company Info:
We are specialized in steel tube and fin tube for more than 10 years and have rich experience. Our factories has professional technicians and engineers, professional testing equipment, rich experience in delivery. We have more than 10 years of cooperative customers.We have four production bases. For usual sizes,we have stock ,so we can make quick delivery.Guarantee the quality and quantity of products, and guarantee the delivery time. The annual production of steel pipe and pipe fittings is 300000 tons, the annual fin tube production is 2 million meters, and the annual air cooler production is 15000 sets.


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FAQ:
1. Q: I haven't done business with you guys before,how can I trust your company?
    A: Our company has been in business of steel tube,fin tube for 9, almost 10 years, which is longer than most  of our fellow suppliers, we've been golden suppliers for years. What's more, we've got quite a lot authority certificates, for example, CE, ISO9001, made in china onsite check certificate. I hope those above will be persuasive enough.
2. Q: What is the minimum order?
    A: Yes, our company mainly deals with wholesale deals, but if you insist buying one piece, or you just need one piece, we would be very likely to make the MOQ as 1 piece for you though.
3. Q: How can I get a sample to check your quality? How long can I get the sample?
    A: After price confirmed, FREE SAMPLE could be provided for your evaluation.
        After you confirm the sample details, the samples will be ready for delivery in 3-7days,and will be sent to you via express and arrive in 3-5days.
4. Q: What payment methods your company accept?
    A: We accept T/T, L/C, Western Union, Paypal.
5. Q: What's the shipment terms and delivery time of your company?
    A: FOB,CFR,CIF,15-60days
6. Q: Do you give any discount ?
    A: We'll surely try our best to help you get those by the best price and good service at the same time.