您要查找的是不是：
- U型裂解炉 U style pyrolysis furnace
- CBL型裂解炉的施工安装 CONSTRUCTION AND INSTALLATION OF CBL TYPE CRACKING FURNACE
- U型 U shape
- U型壳 U - shell
- U型槽 U -Shape Groove
- U型箍 U-ferrule
- U型拉槽 U cutting
- U型挡板 U stop prate
- U型螺钉 U type screw
- U型结构 U-Structure
- U型弯曲 U-bending
- U型手柄 U-handle
- U型布置 U-layout
- U型模型 U-model
- U型钢梁 U-section steel beam
- U型通道 U-shaped channel
- U型发展 U-shaped development
- U型零件 U-shaped part
- U型安瓿 U-type ampoule
- 单U型管 single U tube
