This standard replaces JB 88-59. This standard specifies the type, size and technical requirements for metal toothed gaskets for s

This standard replaces JB 87-59. This standard specifies the type, size and technical requirements for asbestos rubber gaskets for

This standard replaces JB 86-59. JB/T 86.2-1994 Concave and convex steel pipe flange cover JB/T86.2-1994 Standard download and dec

This standard replaces JB 86-59. This standard specifies the types and dimensions of raised face steel pipe flange covers with nom

This standard replaces JB 85-59. This standard specifies the type and size of flanged plate loose steel pipe flanges with a nomina

This standard replaces JB 84-59. JB/T 84-1994 Concave and convex surface welding ring plate type loose sleeve steel pipe flange JB

This standard specifies the product variety, structure, technical requirements, test methods and inspection rules of twill braided

This standard specifies the product classification, general technical requirements, inspection rules, packaging, transportation an