● 船级社 Classification of Ships

中国船级社CCS Rules for Classification and Construction of Ships

法国BV船级社BV Rules for Classification of Ships

英国劳氏船级社LR Rules and Regulations for Classification of Ships

挪威船级社DNV Rules for Classification of Ships

美国ABS船级社ABS Rules for Classification of Ships

日本NK船级社NK Rules for Classification of Ships

德国船级社GL Rules for Classification and Construction

● 标准 Standard

GB/T5312-2009

● 用途 Uses

用于船用锅炉、过热器及耐压力系管道的制造