Qingdao hongtai metal co. Ltd as a leading manufacturer specializing in copper tube for acr, general plumbing, general engineering applications as per astm, bs, jis standard and the requirement of each customer. We have gain ISO 9002 quality systems certificate in 1999, ISO 9001 quality systems certificate(2000standard) in 2002, and the astm certificate in 2000. Owning to the quality products and competitive price, our products has met with warm reception in american, canada, malaysia, iran, india, etc.
