阀门设计与制造按HE5-227,HG5-1366,ZBN12002,ZBN12003,连接尺寸法兰按HG5010,HG5012,HG5016,HG20593,HG20595螺纹按GB7306阀门检验试压按ZBJ16006
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阀门设计与制造按HE5-227,HG5-1366,ZBN12002,ZBN12003,连接尺寸法兰按HG5010,HG5012,HG5016,HG20593,HG20595螺纹按GB7306阀门检验试压按ZBJ16006