您要查找的是不是：
- PPR管材料B4101
- 低膨胀PPR管材料的增韧增刚研究TOUGHENING AND STIFFENING OF LOW THERMAL EXPANSION PPR
- PPR管PPR tube
- 材料makings
- 近年来另一种新型管材PPR管也开始被使用，由于其无毒、质轻、耐压、耐腐蚀，正在成为一种推广的材料。In recent years canal of another kind of new-style PPR tubal material also begins to be used, because its are avirulent, qualitative light, compression, anti-corrosive, making the material of a kind of promotion.
- 包装材料wrapper
- 管材料tube material
- 品管QA
- 排气管vent-pipe
- 生物材料biomaterial
- 风管wind pipe
- 给水用PPR管材专用料的研制RESEARCH ON PPR SPECIALITY FOR WATER PIPES
- 纳米材料nanophase materials
- 配管tubing
- 保温材料heat insulator
- 热管thermotube
- 辅助材料ancillary materials
- 盘管pipe coil
- 材料学hylology
- 别管no matter (who/what etc.)
