旋启式止回阀美标型3″H44H-150Lb全套CAD图纸 3″H44H-150Lb 销轴.dwg(94.09KB)，3″H44H-150Lb-00.dwg(220.06KB)，3″H44H-150Lb-0摇杆.dwg(127.13KB)，3″H44H-150Lb支架.dwg(113.69KB)，3″H44H-150Lb阀体.dwg(181.69KB)，3″H44H-150Lb阀盖.dwg(103.94KB)