W-beam traffic barrier connects with the sigma posts directly, no need spacer or bracket.
W-beam guardrail with round post, can be connected with brackets or spacers.
The most usage W-beam highway guardrail with C or U posts in Malaysia.
The most usage Thrie Beam Guardrail with square posts in China and other Asian countries.
The most usage Thrie Beam Guardrail with round posts in China and other Asian countries.
