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国内现在缺工人,很多农民干过几个月的民用电焊工就冒充是多年的工业电焊经验。后者比前者难度大多了,没焊到位的话表面上是看不出来的。等过个几年国内的桥开始裂了你就知道质量了
gta_palace
(GTA_Palace)
(#10910856@0)
Last Updated: 2017-6-29
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天天都有卫星放?好吧,每周一星。。世界首例!“铁路在上 公路在下” 在中国实现(图) ZT
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