field bolted

All field splices were bolted using ASTM A325 hex head bolts.

所有现场拼接都用美国材料试验协会的A325六角形头螺栓

The cross girder center segments of the bents were field bolted.

构架横梁的中间段在工地用螺栓连接.

standard specification for corrugated steel structural plate, zinc-coated, for field-bolted pipe, pipe-arches, and arches

现场栓接管、管拱和拱用波纹镀锌结构钢板

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

The flanged bolted connection system is widely used in petrochemical and aviation field. Gasket is one important seal components, and its performance directly affects the flanged bolted connection system sealing performance.

法兰螺栓连接系统是石油化工设备、航天技术等领域运用最广泛的连接装置，垫片是连接系统中最重要的密封元件，它直接影响连接系统密封的可靠性。