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Tianjin Manhua Pipe Co., ground source heat pump pipe.
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Tianjin Manhua Pipe Co., product brochures
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GB/T 13663.2-2005 polyethylene (PE) pipe systems part second: fittings
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GB/T 13663-2000 polyethylene (PE) pipe
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Buried polyethylene (PE) for GB15558.2-2005 gas pipeline system _ part second: fittings
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Buried polyethylene (PE) for GB15558.1-2003 gas pipeline system _ part first: pipe
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