GTL series hole - passing connection tube is made of friction - welding craft, both top quality.
GTL系列堵油型铜铝连接管.采用摩擦焊工艺制造.质量可靠.
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GTL series hole - passing connecting tube is made of friction - wilding craft , both top quality.
GTL系列堵油型铜铝连接管.采用磨擦焊工艺制造, 质量可靠.
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Since the 2003 oil price remained rising, GTL has caught wide attention.
自2003年油价持续走高以来, 煤制油作为接替资源受到普遍关注.
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