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广东省高州县国营八一林场利用杠杆原理,用铸铁板代替钢板,制成土热压机生产纤维板。这个热压机只用两片铸铁板及两片废铁片等废旧的设备和一些木料试制成。热压机是这样造成的:铸造两块100×66×4公分的生铁板。上压板在铸造过程中同时铸结上四个铁环,以便提起铁板之用。下压板两端搁在两根方枕上面,为使生火时不烧坏方枕,其内壁用单砖层
Gaoyao County, Guangdong Province, State-owned forest farm using leverage principle, with cast iron instead of steel, made of soil heat press production of fiberboard. The hot press only uses two pieces of iron plate and two pieces of scrap iron and other waste equipment and some wood trial made. Hot press is caused by this: casting two 100 × 66 × 4 cm of pig iron. On the plate in the casting process at the same time cast on the four rings, in order to lift the use of iron. Placed under both ends of the pressure plate resting on the two pillow, in order not to burn the fire when the pillow, the inner wall with a single brick