现场栓接管 meaning in Chinese

standard specification for corrugated

Standard specification for corrugated aluminum alloy structural plate for field - bolted pipe , pipe - arches , and arches
现场栓接管管拱和拱用波纹铝合金结构板的标准规范
Standard specification for corrugated steel structural plate , zinc - coated , for field - bolted pipe , pipe - arches , and arches
现场栓接管管拱和拱用镀锌波纹钢结构板材的标准规范