Hardened seating surfaces ? both disc and body seating surfaces are hard faced for maximum service life 硬化的阀座表面?阀瓣和阀体地阀座表面都经过表面硬化，最大限度延长使用寿命。
Expose the product to sunshine every month for 3 to 5 hours , which will make even better product performance and prolong service life 每月于曝光下暴晒三至五个小时可使产品性能更佳，延长使用寿命。
Chain of imported parts , rack with stainless steel production , in order to extend the life , non - slippery imports chain plate heat , high reliability operation 链条采用进口配件，机架采用不锈钢材制作，延长使用寿命。
Applied hardware structure and sector accessory , it is durable enough , also concealed back panel optimize the appearance of whole unit 说明：金属结构的外翻式扇形五金配件，延长使用寿命。隐藏式的背板设计增加美观性。
It has important meanings to advance the using efficiency of facility , build up dependability , reduce repairing fare and prolong using life time 这对于提高设备的使用效率，增强可靠性，减少维修费用和延长使用寿命具有重要的意义。
Adopt the cold construction in breeze , economize the movement expenses , under the special circumstance , and adopt to cool off compulsory , extend service time 采用风冷式结构，节约运行费用；在特殊情况下，采用强制冷却，延长使用寿命。
The dead - end is designed to terminate optical ground wire opgw while minimizing any compression stresses that may be transferred to the core or optical elements within 此线夹不但能保护光纤不受损伤，传递轴向拉力，还能增加光缆抗振能力，延长使用寿命。
Body ? full ported , heavy duty body with api 600 wall thickness for maximum service life . provided with bosses for optional by - passes or drains 阀体-全流道(全端口) ，重型阀体，符合api600标准的壁厚，最大限度延长使用寿命。可配置用于旁路阀或排泄阀的轮毂。
High - quality materials , strict quality management , high - temperature agglomeration and balanced hardening treatment all these guarantee superior quality and long performance life 采用高品质材料严格的品质管理，经高温烧结及均衡之硬化处理等,确保超强品质及延长使用寿命。
Abstract : the structural principles and desingning calculation of a roller coppling are discussed . this coupling is light , small , simple , cheap , good quality and wide application 文摘:探讨了滚珠联轴器的结构原理，讨论和分析了该联轴器的传力特性，降低联轴器的磨损、延长使用寿命等技术问题。
