However, sales of rubber in the form of a rubber cup lump, it causes waste in the form of a sewage smell is disgusting. The reaction between the acid is added to water to make a sticky rubber grip.
However, the distribution of rubber in the form of a rubber cup lump can lead to waste in the form of น้ำเสียที่มี smell distasteful. From the reaction between acid added to water the rubber into loaves .