Dear Sir,
Qingdao Hongtai copper Co., LTD and its Canada joint venture---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, AS/NZS 1571, AS 1432 Standard and the requirement of each customer.
Our annual sales quantity more than 40000 M/tons and we have gain ISO 9002 Quality Systems Certificate in 1999, ISO 9001 Quality Systems Certificate (2000 Standard) in 2002, and the ASTM Cer...
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