Filter Valve Implementation Standard:
Design specification: HG/T 21637
Length: GB/T 12221
Connecting flange: JB/T 79
Test and Inspection: JB/T 9092
Product identification: GB/T 12220
Supply specification: JB/T 7928
Jun 24, 2022
Filter Valve Implementation Standard:
Design specification: HG/T 21637
Length: GB/T 12221
Connecting flange: JB/T 79
Test and Inspection: JB/T 9092
Product identification: GB/T 12220
Supply specification: JB/T 7928
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