pig iron造句
31. This is not always true - as with the manufacture of pig iron and steel from low - grade iron ores - but it did lead ...
32. The head and spindle nose of the screw shaft use the pig iron which is durable and wear-resisting . The lifting equipment can be divided into motor operation and hand operation.
33. I was founded in 1999, mainly engaged in pig iron casting, processing business.
34. Torpedo ladle car, used for transport of liquid pig iron, model in realistically weathered condtion.
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