鋼質大D扣環是用在什麼場合? - 戶外用品

By Andy
at 2009-09-08T23:22
at 2009-09-08T23:22
Table of Contents
一般攀岩常用的大D閉口直向拉力通常是 23~25 kN,
鋁合金的材質讓重量不過八九十克,但是網路上也有賣
一種鋼質、重兩百多克、閉口直向拉力可耐 45 kN 的
大D:
http://www.jackson-sports.com/Models.aspx?ModelID=570
請問這種特別耐重的扣環用在什麼時候?確保時可以取
代鋁合金那一種較輕的大D嗎?
除了重量比較重,它還有什麼缺點呢?
--
鋁合金的材質讓重量不過八九十克,但是網路上也有賣
一種鋼質、重兩百多克、閉口直向拉力可耐 45 kN 的
大D:
http://www.jackson-sports.com/Models.aspx?ModelID=570
請問這種特別耐重的扣環用在什麼時候?確保時可以取
代鋁合金那一種較輕的大D嗎?
除了重量比較重,它還有什麼缺點呢?
--
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戶外用品
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