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城市居民生活用水量标准
The standard of water quantity for city s residential use
价格：￥0.00
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二次供水运行维护及安全技术规程(附条文说明)
价格：￥0.00
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薄壁不锈钢管
Light gauge stainless steel tubes
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薄壁不锈钢卡压式和沟槽式管件
Light gauge stainless steel press-fittings and grooving fittings
价格：￥0.00
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超大型钢筋混凝土顶管管节制作、施工及验收规程(附条文说明)
价格：￥0.00
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卡压式铜管件
Brass fittings for press joint
价格：￥0.00
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塑料化粪池
Thermo plastic septic tank
价格：￥0.00
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