Home / Standards / GB/T 10750-1989 GB/T 10750-1989 Abolished Marine oval-shaped cast iron and cast steel pipe flanges 船用扁圆形铸铁和铸钢法兰 Standard Type GBT ICS 47.020.30 CCS U55 Status 废止 Issue Date 1989-03-31 Implementation 1989-12-01 Responsible Dept 国家标准委 Drafting Unit N/A