执行标准

1. 设计与制造：GB/T 12237,API608,API 6D,BS5351,JPI 7S-48,DIN3357

2. 法兰尺寸：JB/T 79,GB/T 9113,SH3406,ASMEB16.5

3. 结构长度：GB/T 12221,ASMEB16.10,JIS B2002

4. 检验和实验：GB/T 26480,API 598