weld-shrunk multilayered cylinder

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1.	包扎式多层圆筒焊接专业网焊接英汉... ... weld-shrunk cylinder 包扎式圆筒 weld-shrunk multilayered cylinder 包扎式多层圆筒；多层包扎式圆筒 ... www.hanjie.com
2.	多层包扎式圆筒焊接专业网焊接英汉... ... weld-shrunk cylinder 包扎式圆筒 weld-shrunk multilayered cylinder 包扎式多层圆筒；多层包扎式圆筒 ... www.hanjie.com