filler joist floor.
栏栅填料楼板
aluminium alloy joist
铝合金龙骨
solidweb steel joist.
实腹钢搁梁
skip joist system floor.
搁栅式楼板
Main joist of suspended ceiling
吊顶主龙骨
WEB lightgauge steel joist sytem.
无比钢龙骨体系
WEB Light Gauge Steel Joist Structure.
无比轻钢龙骨体系
Concrete light gauge steel joist structure
轻钢龙骨结构体系
Light gauge steel joist frame and gypsum board
轻钢龙骨架，石膏板
Optimization Design of Joist Gantry Crane Grider
桁架起重机主梁强度分析与结构优化
Optimizing design of two bar joist rack structures
二杆桁架的优化设计
Varnish joist， light steel joist and accessories
烤漆龙骨，轻钢龙骨及配件
Optimization design of joist gantry crane structure
桁架门式起重机结构优化设计
Application of a New Lightweight Steel Joist System.
新型轻钢龙骨结构体系的应用
Special solid blades for cropping channels and joist
槽钢, 工字钢剪切部位
Light gauge steel joist frame with glass wool inside
轻钢龙骨架内填充玻璃棉
a triangular metal bracket used to strengthen a joist
一种三角形的金属托架, 用来加固地板托梁
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