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MANKENBERG - 【怡富興業】控制閥,蝶閥,電動頭,工業陶瓷,旋塞閥,電動馬達閥 KUGELHAHNE KUGELHAHNE BALL BALL VALVES VALVES 1. 具兩道密封座,第一道為金屬密封座(a), 第二道為軟密封座(b) 2. 第一道金屬密封座(a)可有效抵擋流體 (D)內的雜質,以防止軟密封座(b)刮傷 3. 第一道金屬密封座(a)承受70-80%的壓
[討論] 請問鈦材質的錶帶是否容易刮傷? - 批踢踢實業坊 推FFSUPERTB:有部分鈦合金錶有做錶面硬化處理,使硬度接近不銹鋼,但 11/21 01:16 ... 推z1288:刮傷可以再拋光跟刷霧面..不用擔心太多 11/21 ...
鈦合金錶帶 - Yahoo!奇摩知識+ 最近有打算要買手錶, 看到不少手錶都標榜\"鈦合金錶殼及鈦合金錶帶\",優點是重量比較輕, 硬度也較硬, 不易刮傷. 剛好最近\"鈦鍺磁石手鍊\"也很流行,不知道\"鈦合金 ...
Titanium vs. Stainless Steel Rings | Overstock.com Durability and scratch resistance: Titanium and stainless steel jewelry pieces are popular for their durability and scratch resistance. Titanium is three times ...
Does Titanium scratch easier than SS? - Watchuseek Simple enough question, but seems to be conflicting opinions/facts on which metal scratches easier. 1) Does Ti scratch more easily than SS for cases/br.