...制作工艺；厚板焊接 [gap=367]Keywords: steel structure of boiler; main girder; production technology; thick plate welding ...
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thick plate welding joint 厚板焊接接头
thick plate welding technique 厚板焊接技术
thick plate welding technology 厚板焊接技术
thick aluminum plate welding 铝合金厚板焊接
Thick Steel Plate for Welding 厚钢板的焊接技术
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