Enterprises and their products require corresponding international qualifwation when they participate in international market competition after China joined WTO
The relationship between the t8/5 and micro-hardness, impact toughness in the heat affected zone (HAZ) of ASME SA213-T92 at peak temperature of 1 350 ℃ was stu
The process properties and interface behavior of CO2 laser brazing with automatic wire feed for galvanized steel sheets were investigated , in which the brazing