CB*3234-84
Applicable for walkway in fireproof areas,class A & B divisions,engine wall and accommodation.

Class A	A60	RO(YW) RI(YN) LO(ZW) LI(ZN)
	A30
	A15
	A0
Class B	B15
	B15-S
	B0-S

A	one steel wall
B	one steel wall one decorative wall
C	one steel wall two decorative wall