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防火门闭门器
Fire-proof door closer
价格:¥0.00
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内层熔接型铝塑复合管
Internal layer thermo-fusion polyolefin/aluminum/polyolefin composite pipe
价格:¥0.00
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沟槽式管接头
Grooved couplings
价格:¥0.00
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再生树脂复合材料检查井盖
Composite material inspection well lid of regenerated resin
价格:¥0.00
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建筑用铜管管件(承插件)
Copper tube fittings for construction(Spigot and socket joint)
价格:¥0.00
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