万煜智能 WANYU ININTELLIGENT 专业干打不加水 钎焊开孔器 工业级品质可干钻开孔 全瓷/玻化砖/大理石/玻璃 WAN YU INTELLGENT TECHNOLOGY SPECIAL FICTURE WITHOUT PERMISSION STOLENMAP SHALL BE PROSEOUTED 12mm 开孔整齐、光滑、无碎边 5mm 06mm 10mm 钎焊金刚砂秘制冷却蜡