Titanium is a lightweight structural material of high quality and is also the material of new functions.
金属钛是优质的轻型结构材料、新型功能材料。
Walnut shell material of high quality walnut shell as raw material, crushing, polishing, steam cleaning, drug preservative treatment, two filter processed.
核桃壳滤料采用优质山核桃壳为原料,经过破碎、抛光、蒸洗、药物防腐处理,两次筛选加工而成。
Art paper is a common printing paper material of high-quality. In the investigation at crime scenes, printing matters of art paper, on which sweat fingerprints are left, can often be found.
铜版纸是常见高级印刷纸材料,在犯罪现场勘查中常遇留有汗液指纹的铜版纸印刷品。
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