亚洲精品国产二区在线观看_欧美亚洲中日韩中文字幕在线_国产成人AV无码片在线观看_美女视频一区二区三区在线观看

75mm~750mm×10mm

High-frequency welding H-beam production line

Aerial view of welded H-beam production line

Five roller leveling machine

Feeding

Upper wing flap

Wings under the high-frequency welding

--------------end-------------

Taiyuan Si Chen Machinery Equipment Co., Ltd. Release,Welcome to share