PCBs非金属粉
Non-metallic powder of PCBs
玻璃质非金属自润滑复合涂层
glass matrix non metal self-lubricating composite coating
船用非金属电缆扎带
marine non-metal cable tier
次生石英岩型非金属矿床
Secondary quartzite type of non-metallic deposits
大块金属非晶
bulk metallic amorphous alloy
带缝非金属腔
Nonmetal cavity with a slot
低维无机非金属材料
low-dimension inorganic non-metallic materials
非金属材料检测仪
nonmetal material detector
非金属材料试验机
nonmetallic material testing machine