执行标准
执行标准
机械加工专用管
GB/T8162-2008 ASTM A519-2006
GB/T8163-2008 ASTM A53M
压力容器专用管
GB3087
GB5310
ASTM A106/ASME SA106
ASTM A192M/ASME SA192M
ASTM A209M/ASME SA209M
ASTM A210M/ASME SA210M
ASTM A213M/ASME SA213M
ASTM A335M/ASME SA335M
DIN17175
EN10216
石油专用管
API SPEC 5L
API SPEC 5CT
ERW直缝钢管
GB/T9711.1-1997
GB/T9711.2-1999
GB/T3091-2001
API SPEC 5L
API SPEC 5CT
SAW埋弧焊管
GB/T9711.1-1997
SY/T5037-2000
API SPEC 5L