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精冲成形
用压边圈使板料冲裁区处于三向压应力作用下,抑制剪裂纹的发生,实现塑性变形分离的冲裁方法。简称精冲。
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murals in the tomb of Princess Ruru
murals in the tomb of Yuan Yi
murals in the Xinan Song tomb
Murals in Tomb of Bu Qianqiu
murals in tomb of Feng Daozhen
Murals in Tomb of Han Dynasty in Shaogou
murals in tomb of Han Shixun
murals in tomb of Jin dynasty in Pingding county
murals in tomb of Zhuang Kuangzheng
murals in tombs of Han Dynasty
Murals in Vairocara Temple
Murals in Xinghua Temple
Murals in Yanshan Temple
Murals of Helingeer Han Tomb
Murals of Northern Dynasties at Wanzhang in Cixian
Murals of the Liao Dynasty tombs at Baoshan
Murals of the Taiping Heavenly Kingdom
Murals of Tomb of Han Dynasty in Yingchengzi
murals of Zaju Opera of the Mingying Wang Hall in Hongdong County
murals on music and dance performances of Su Sixu’s tomb
murals on the Astana-Karakhoja ancient tombs of the Tang Dynasty
murals on the dramatic stage of the Dongyue Temple in Liaotian Village
Murals Tombs of Wei,Jin and Sixteen Kingdoms Period in Hexi Corridor
Mural Tomb at Nanwuli
Mural Tomb at Shaling of Northern Wei Dynasty
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