While it is very common to see British, Canadian and Indian braces (as well as Australian if you're actually in Australia) on the collector's market, South African braces are relatively uncommon. This is partly due to the inferior quality of South African webbing as well as the country of origin's geographical location.
South Africa had two main producers of webbing during WWII, D. I. FRAM CO. LTD. (Daniel Isaac Fram & Company, Limited) and S.A.P.A.W. (South African Proofing and Weaving Company (Pty) Ltd). Both of these firms were located in Johannesburg, but they both employed radically different methods of construction for the various components of the Pattern 1937 web equipment.
These braces are different than any other style made during the war, since the 1" strap runs the entire length of the 2" shoulder section. While other webbing firms in the UK and India chose to make braces out of three separate pieces of webbing, S.A.P.A.W. used two (possibly to add reinforcement to their inferior webbing).
Unblancoed South African webbing was also made in a distinctive pale shade of khaki, which is evident when shown next to a 1941 British-made brace attachment (made by Wrights). The faint maker's mark is also evident in blue-green ink and reads "S.A.P.A.W. ~ JHB. 1943".
The brace tips are characteristically South African and are made of cheap alloy painted gold (these are often heavily corroded).
Lastly, the Union of South Africa ownership mark is partly stamped on one of the braces. This mark consisted of a broad arrow inside the letter ‘U’ (which stood for the Union) and was often stamped in red ink.