The experimental conclusion has the important reference function to the modular cast iron shaping craft formulation.
试验结论对球墨铸铁的压力加工工艺制定有重要的参考作用。
The utility model relates to a gas-fired hot water boiler, in particular to a wet-back gas-fired hot-water modular cast iron boiler.
本实用新型涉及一种燃气热水锅炉，是一种湿背式燃气热水铸铁模块锅 炉。
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