Sare - shaabadeynta saxan qurxin: sare - shaabadeynta darajada saxanka qurxinta waxay ku jirtaa saxanka birta ah ee aan nadiifka ahayn iyadoo la adeegsanayo farsamaynta qalabka farsamada, si dusha sare ee saxanku u muuqdo mid isku mid ah - qaabka convex.
Tusaale ahaan: hadhuudh jeegag yar, hadhuudh jeeg dheeman ah, qaabka midabka, hadhuudhka goobada midabka iyo wixii la mid ah.
Si ka duwan habka guddiga etching, guddiga ubaxa ah shaabadeynta heerka sare waa habka processing jirka, dusha waxay yeelan doontaa concave iyo convex dareen, la dareen ka fiican saddex-cabbir ah iyo iska caabin ah khilaaf, caadi ahaan loo isticmaalo in lagu sameeyo saxan albaabka birta ahama, ahama anti-slide, ahama miiska saxan.

Macluumaad dheeri ah oo ku saabsan birta aan wanaagsanayn fadlan booqo: https://www.hermessteel.net