Siddhi Rubber Udyog

40mm Polyethylene Expansion Joint Filler Board is a specific type of joint filler used to fill expansion joints in concrete or other structural elements. It is made from polyethylene foam, which is a highly versatile and durable material. 

40mm Armour Expansion Joint Filler B typically refers to a type of expansion joint filler that is 40mm thick (often referred to as "Armour" due to its durability or brand name) and designed to fit into expansion joints. These types of fillers are used in construction or infrastructure to absorb and accommodate movement within expansion joints while providing support to the surrounding materials.

4-foot bitumen impregnated joint filler board is a specific type of expansion joint filler designed to be used in construction, particularly for concrete or asphalt pavements, roadways, or structural joints. The board is impregnated with bitumen (a type of tar-like material) to provide additional durability, water resistance, and flexibility.