BEL 預製混凝土喉管及配件 BEL Precast Concrete Pipe and fitting TO BS EN 5911-1 : 2002 + A2:2010 & BSEN 1916:2002 Flexible Spigot and Socket joint*Colours customisation is available upon request*
BEL 預製混凝土喉管及配件 BEL Precast Concrete Pipe and fitting TO BS EN 5911-1 : 2002 + A2:2010 & BSEN 1916:2002 Flexible Spigot and Socket joint*Colours customisation is available upon request*