jiangsu haifuwei testing instruments produces and sells hot and cold impact test chambers, constant temperature and humidity test chambers, high and low temperature test chambers, salt spray test chambers, high and low temperature humidity and heat test chambers, rain test chambers, high and low temperature impact test chambers, sand and dust test chambers, programmable high and low temperature boxes, ultraviolet light test chambers, rain test chambers, dustproof test chambers, walk-in high and low temperature test chambers, high and low temperature boxes, walk-in high and low temperature aging chambers, etc. the company adheres to the principle of "quality first, reputation service, and user first", and wins praise from domestic and foreign customers by strengthening quality awareness and continuously meeting customer requirements; strengthening competitive awareness and improving product sales; strengthening management awareness and continuously improving the quality system. !
二战期间，德军的战俘营里，每个人都在渴望着自由。美国人希尔（史蒂夫•麦奎因 Steve McQueen 饰）在进入战俘营的第一天起，就一直计划着越狱。虽然他的十多次逃跑都以失败告终，但希尔从未放弃。这次，希尔和英国军官罗杰计划秘密挖掘隧道带领250人一起越狱。所有人都贡献出了自己的一分力配合这次计划，有人专门负责制作大家逃跑后需要穿着的平民服装、有人负责做假证件、还有人负责储备食品等等。然而就在他们的隧道大功告成那天，隧道却被德军发现了。逃跑计划的日期一天天临近，希尔他们又开始新一轮的挖掘工作。
