制版设备; 电镀设备; 打样机; 铜抛光机; 铬抛光机; 研磨机; 砂轮; 凹印印刷机; plate-making; electroplating; proofing; copper polishing; chrome poshing; grinding; grinding wheel; rotogravure pingting; printing cylinder; engraver; 电雕机;