发布时间:2025-01-19 18:19:33
Z41T-10: Z代表闸阀,4代表法兰端,1代表明杆,刚性楔式闸板,T代表密封面是铜合金
Z45T-10: Z代表闸阀,4代表法兰端,5代表暗杆,刚性楔式闸板,T代表密封面是铜合金
J11T-16: J代表截止阀,1代表内螺纹端,1代表明杆,直通式,T代表密封面是铜合金
J41T-16: J代表截止阀,4代表法兰端,1代表明杆,直通式,T代表密封面是铜合金
10,16代表的是压力,PN10,PN16,国标或者德标闸截止阀
秋枫树移植一般多久才会发芽 秋枫树移植后需要多长时间才能发芽
2025-01-19 18:19:33 2025-01-19 18:19:33 2025-01-19 18:19:33 2025-01-19 18:19:33 2025-01-19 18:19:33 2025-01-19 18:19:33 2025-01-19 18:19:33落叶松原木多久能干透 落叶松原木空气干燥多久可以达到干湿平衡
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