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1828 ʱ䣺2011-12-01

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רΪҺȼĹ·װơϲþķϩܷɿ©ܷ⸱ϲþķϩԷ屾ϣΪܷ⣬ܷɿҺҺ·ϵͳΪװãҲ¶≤80Ĺ·


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ơ죺GB/T12237-89
ӣJB/T79-94GB9113-2000
ṹȣGB12221-89
ͨDN15~DN150mm
ѹPN1.62.54.0MP
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