包邮3本】GB/T12241-12242-12243-2021压力释放装置弹簧直接载荷式安全阀一般要求 特种设备安全生产国家标准全新正版现货图书含票
US$33.33
- 库存: 100
- 模型: 10046825669930
- 重量: 0.76kg
- 尺寸: 123.00cm x 88.00cm x 1.50cm
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