Gaskets regularly furnished in class 150 and 300 wedgeplug valves are corrugated soft iron of excellent strength and ductibility . classes 600 - 1500 are ring - joint type 压力等级为150和300的楔形塞阀门通常配置的垫圈是波纹状软铁,具有优异的强度和延展性。压力等级600 - 1500则采用环连接类型。
Abstract : the brazing technology for asynchronous traction motor is introduced from various aspects as the choosing of end - ring and conducting bar materials , solder and flux , brazing joint type and brazing technology 文摘:从端环和导条材料的选择、钎料和钎剂的选择、钎焊接头型式的选择及其钎焊工艺等方面介绍了异步牵引电动机端环与导条的钎焊技术。
We are specialized in producing screwdriver , screwdriver set , ratchet screwdriver voltage tester , precision screwdriver , plier , long nose plier , bent nose plier , diagonal cutting plier , linesman plier , mini plier , end nipper plier , joint type plier , pearl nipper plier , extemal snap ring plier , fishing plier , multi - purpose combination plier , heavry duty pipe wrench , wrench , bolt cutter , and other combined tools 公司专业生产螺丝刀,棘轮螺丝刀,老虎钳,螺丝刀套装,螺丝刀批头,电笔,钳类:钢丝钳,尖嘴钳,弯嘴钳,迷你钳. ,大力钳,断线钳,顶切钳,电缆钳,钓鱼钳,挡圈钳,水管钳,航空剪,扎线钳,胡桃钳,扳手,套筒,锉刀,和各类组合套装工具
In order to avoid similar damage in future , investigation of some further new and finer joint types of the beam - column connections , analyses of the damage mechanism of new joints types under cyclical load and advance of new aseismatic design measure are not only significant from the theoretical aspect , but also important in practice 为了避免人员伤亡和财产损失,研究新的、性能优良的节点连接方式,找出新型节点在循环荷载作用下的破坏机理,提出新的节点构造和抗震设计对策,不仅具有重要的理论意义,同时也具有重大的工程意义。