3A 盲蓋

1. 尺寸: 1/2", 3/4", 1", 1-1/2", 2", 2-1/2", 3", 4", 6", 8", 10", 12" 2. 材質 : SS304 , SS316L 3. 密封圈 : EPDM , Silicone , Viton , PTFE

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