幫我看看這些圖紙上的標註是啥意思，謝謝啦

1. Material: hard fiber
   steel, parts made out of steel to be bright zinc iridite plated(.0002 THK.)
這是一張小零件加工圖上的，朋友讓我看看啥意思，可惜iridite plated看不懂，不知道是？？？包裹的？？
那位仁兄知道，麻煩告訴一下。
謝謝

材料: 硬纖維
鋼(或鐵)，非鋼零件由亮鋅(iridite? )鍍過

沒咋看懂，到GOOGLE里查了一下：http://www.finishing.com/192/77.shtml
Iridite is a trade name for a whole family of chromate conversion coatings
Iridite 是Macdermid公司的商標名稱，該商標是關於一套鉻酸鹽常規方法塗層方面的。
這句話：parts made out of steel to be bright zinc iridite plated(.0002 THK.)
應該是「：這個部件是鋼按iridite標準經光亮鍍鋅（厚度。0002）而成。
不一定對，你要是這方面行家應一看就懂了。

[QUOTE=tycm]1. Material: hard fiber
   steel, parts made out of steel to be bright zinc iridite plated(.0002 THK.)
這是一張小零件加工圖上的，朋友讓我看看啥意思，可惜iridite plated看不懂，不知道是？？？包裹的？？
那位仁兄知道，麻煩告訴一下。
謝謝[/QUOTE]

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zinc plated = 鍍鋅（的），if you have spare time, you can go to a jewelry shop. 有9999純金，有18k鍍金，9k 鍍金等。鍍金=gold plated

iridite = are you sure the spelling is correct? I consulted my dictionary and found a word like this ---iridium = a hard white metallic element of the transition series used esp. in alloys. Please check it again and see if the spelling is right or not.

鍍鋅部件

for your reference:

http://www.finishing.com/348/67.shtml
I'm well aware of Iridite as a [U]corrosion inhibitor [/U] on aluminum,

My customers who require chromating sometimes refer to this as Iridite, which is generically used for chromating aluminium.

http://www.finishing.com/345/47.shtml
"Iridite" (one 'r') is a WHOLE FAMILY of [U]hexavalent[/U] chromium chemicals for converting a host of material, NOT LIMITED TO ALUMINUM, to a chromate coating.[/COLOR] "Iridite" is a registered trademark of MacDermid - formerly Allied Kelite prior to MacDermid purchasing AK. Iridite 14-2 is for doing basic chromate conversion coating on aluminum, but there is an Iridite for yellow chromate on silver, several for zinc, Iridite 15 for chromate on magnesium, etc. Bottom line: putting "Iridite" on a drawing doesn't make sense - it's a tradename and not even a unique process. What's wrong with a specification such as MIL-C-5541, AMS 2473, or the appropriate ASTM spec? Also, regarding Mr. Nosti's response, the only spec that's been revised to include a non-hexavalent chromate for aluminum is MIL-DTL-81706 which includes a provision for BOTH the conventional hex chrome bearing as well as another for non-hex. The associated QPL-81706 which will list qualified products for both hex and hex-free hasn't been released ( NOR HAS MIL-C-5541 ).