Exhibits: Plastic Rings, Pvc Cover, Paper Cover, DoubleWire.
展品:装订胶圈,装订胶片,皮纹纸,双铁圈。
2
Design principle, structure, operation and maintenance of ZNS3 doublewire decker were introduced in this paper.
介绍了ZNS3双网脱水机的设计原理、结构、操作与维护。
3
On the current technical level, the doublewire submerged arc narrow groove welding technology invented by Harbin welding Institute was recognized by the market.