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近期JB4708-2000《钢制压力容器焊接工艺评定》标准及JB/T4709-2000《钢制压力容器焊接规程》标准已修订完毕,即将出版发行。我协会拟于下半年举办JB/T4708、JB/T4709新
Recent JB4708-2000 “steel pressure vessel welding process evaluation” standard and JB / T4709-2000 “steel pressure vessel welding procedures” standard has been revised and will be published soon. I Association to be held in the second half of JB / T4708, JB / T4709 new