SH/T 3419-2007 Steel swage(d) nipples

SH/T 3419-2018

GB 3087-1999 Seamless steel tubes for low and medium pressure GB/T 3087-2008 Seamless steel tubes for low and medium pressure boiler GB/T 3087-2022 Seamless steel tubes and pipes for low and medium pressure boiler GB 5310-1995 Seamless steel tubes and pipes for high pressure boiler GB/T 5310-2008 Seamless steel tubes and pipes for high pressure boiler GB/T 5310-2017 Seamless steel tubes and pipes for high pressure boiler GB/T 5310-2023 Seamless steel tubes and pipes for high pressure boiler GB 6479-2000 Seamless steel tubes for high-pressure for chemical fertilizer equipments GB/T 6479-2013 Seamless steel tubes for high-pressure chemical fertilizer equipments GB 9948-1988 Seamless steel tubes for petroleum cracking GB 9948-2006 Seamless steel tubes for petroleum cracking GB/T 9948-2013 Seamless steel tubes for petroleum cracking GB/T 1220-1992 Stainless steel bars GB/T 1220-2007 Stainless steel bars GB/T 1221-1992 Heat-resisting steel bars GB/T 1221-2007 Heat-resistant steel bars GB/T 12716-2002 Pipe threads with the thread angle of 60 degrees where pressure-tight joints are made on the threads GB/T 12716-2011 Pipe threads with the thread angle of 60 degrees where pressure-tight joints are made on threads GB/T 14976-2002 Stainless steel seamless tubes for fluid transport GB/T 14976-2012 Seamless stainless steel pipes for fluid transport GB/T 1591-1994 High strength low alloy structural steels GB/T 1591-2008 High strength low alloy structural steels GB/T 1591-2018 High strength low alloy structural steels GB/T 18984-2003 Seamless steel tubes for low-temperature-service piping GB/T 18984-2016 Seamless steel tubes for low-temperature-service piping GB/T 3077-1999 Alloy structure steels GB/T 3077-2015 Alloy structure steels GB/T 699-1999 Quality carbon structural steels GB/T 699-2015 Quality carbon structure steels GB/T 7306.2-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 2:Taper internal and external threads GB/T 8163-1999 Seamless steel tubes for liquid service GB/T 8163-2008 Seamless steel tubes for liquid service GB/T 8163-2018 Seamless steel pipes for liquid service JB 4726 JB 4727 JB 4728 JB/T 4730.1～4730.6 JB/T 4730.1～4730.6 JB/T 4730.3-2005 Nondestructive testing of pressure equipments—Part 3:Ultrasonic testing JB/T 4730.4-2005 Nondestructive testing of pressure equipments—Part 4:Magnetic particle testing JB/T 4730.5-2005 Nondestructive testing of pressure equipments—Part 5:Penetrant testing JB/T 4730.6-2005 Nondestructive testing of pressure equipments—Part 6:Eddy current testing GB/T 9948-2025 Seamless steel tubes and pipes for petrochemical and chemical facilities GB/T 14976-2025 Seamless stainless steel pipes for fluid transport GB/T 18984-2026 Seamless steel tubes and pipes for low temperature service