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This standard applies to the articulated pipe joints in the oil-based medium management system, with a nominal pressure of 320kgf/
JB/T 977-1977 Welded branch pipe joint JB/T977-1977 Standard download decompression password: www.bzxz.net
JB/T 975-1977 Welded Bulkhead Right Angle Pipe Joint JB/T975-1977 Standard Download Decompression Password: www.bzxz.net
JB/T 974-1977 Welded Bulkhead Straight Pipe Fitting JB/T974-1977 Standard Download Decompression Password: www.bzxz.net
JB/T 973-1977 Welded Cross-type Pipe Fitting JB/T973-1977 Standard Download Decompression Password: www.bzxz.net
JB/T 972-1977 Welded Tee Pipe Fitting JB/T972-1977 Standard Download Decompression Password: www.bzxz.net
JB/T 971-1977 Welded right angle pipe joint JB/T971-1977 Standard download decompression password: www.bzxz.net
JB/T 970-1977 Welded Straight Pipe Fittings JB/T970-1977 Standard Download Decompression Password: www.bzxz.net