A low pressure casting equipment has been developed, which is specially designed for the production of large-size thin-walled high-quality aluminum alloy parts with resin sand molds.

介绍了一种树脂砂型专用的低压铸造设备，适用于优质大型薄壁铝合金铸件的生产。

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High chromium possesses good abrasion resistance, but it is a kind of friable materials. Thin-walled high chromium cast iron pipes also have a tendency to crack, so it is difficult to cast.

高铬铸铁具有良好的耐磨性，但它是一种脆性材料，薄壁的高铬铸铁还有巨大的开裂倾向，铸造难度较高。

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The real question is how high the walls between these walled gardens will be.

真正的问题是这些被围起来的花园的围墙究竟有将会有多高。

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Drax will get 10% of its fuel from British sources like these and there's a high-walled maze at the power station of blocks of chopped miscanthus next to high mounds of shredded willow.

BBC: Biomass may hinder climate fight

The water calms, and our first iceberg encounter is a half-mile-long, high-walled rectangular platform whose symmetry looks too exact to be real.

FORBES: Go with the Floe