JT/T 33.27-93 Technical grade standards for workers In the communlcations industry-Communications engineering-Operating workers of cement and concrete

JT/T 33.5-93 Technical grade standards for workers in the communications industry-Communications engineering-Crane workers on water. 1主题内客 与适用范围 JT/T

JT/T 33.6-93 Technical grade standards for workers in the communications industry-Communicatlons engineering- Throw aod fill workers on water. 1主题内容与适

JT/T 33.7-93 Technical grade standards for workers in the communications industry-Communications engineering-Brick workers. 1主题内容 与适用范围 JT/T 33.7规定了航务

JT/T 33.8-93 Technical grade standards for workers in the communications industry-Communications engineering-Divers. 1主题内容与适用范围 JT/T 33.8规定了航务工程潜水工的等级

JT/T 33.9-93 Technleal grade standards for workers in the communications Industry-Communications engineering-Surveyors. 1主题内容与适用范围 JT/T 33.9规定了航务工程测量工

JT/T 33.18-93 Technical grade standards for workers in the communications industry-Communications engineering-Operating workers of roller. 1主题内容 与适用范围

JT/T 33.2-93 Technical grade standards for workers in the communications industry-Communications engineering-Stee1 fixers. 1主题内容 与适用范围 JT/T 33.2规定了航务工

JT/T 33.3-93 Technical grade standards for workers in the communications industry-Communications engineering- Formrixers. 1主题内容 与适用范围 JT/T 33.3规定了航务工程

JT/T 33.4-93 Technical grade standards for workers in the communications industry-Communications enginering- Piling workers on water. 1主题内容 与适用范围 JT/T