Obtained 1 national standard

Q/GZYY 001-2021 FA serics of aluminium flux for brazing at high temperture

Q/GZYY 002-2021 AS series of aluminium filler metals for brazing at high temperature

LHG series of aluminium brazing paste for electrical heating appliances trade

Q/GZYY 004-2021 High temperature aluminum silicon brazing flake

Q/GZYY 005-2021 High temperature aluminum silicon composite welding wire

Q/GZYY 006-2021 Aluminium flux for aluminum heat exchanger

Q/GZYY 007-2021 WLHG series of hydrophilic aluminium paste for brazing

Q/GZYY 008-2021 WNHG series of hydrophilic nickel paste for brazing

Q/GZYY 009-2021 NHG serics of nickel paste for brzing

Q/GZYY 010-2022 FS series aluminum flux for brazing special aluminum alloy

Q/GZYY 011-2022 WSLHG series of aluminum brazing paste for brazing special aluminum alloy

Q/GZYY 012-2022 THG series of copper paste for brazing