Knowledge

Divided into block rubber, latex, liquid rubber, and powder rubber according to their morphology. Latex is a colloidal water dispersion of rubber; Liq

Universal rubber has good comprehensive performance and is widely used. There are mainly: ① Natural rubber, made from latex from three leaf rubber tre

Linear structure: The common structure of unvulcanized rubber. Due to its high molecular weight, the macromolecular chains exhibit random curling curv

Natural rubber is made from latex, and a portion of the non rubber components contained in latex remain in solid natural rubber. Generally, natural ru

The term rubber comes from the Indian word cau uchu, which means "a tree shedding tears.". Natural rubber is made by solidifying and drying

Rubber refers to a highly elastic polymer material with reversible deformation, which is elastic at room temperature and can undergo significant defor

1. The comb represents lovesickness, representing that the other person misses and misses you very much. 2. The comb combs your hair every day, which

As we all know, since ancient times, Chinese people have always given combs as gifts to their loved ones on Qixi Festival. Why is it necessary to give

Identifying authenticity The quality of corner combs on the market varies, and I don't know how to distinguish the authenticity and quality of cor

repair If there is any bending, it can be roasted over fire and then pressed with an appropriate weight for a period of time to recover. Yellow ox hor

apply The horn comb is made from ox horns, which have been a traditional Chinese medicine since ancient times. Using a comb to comb your hair can remo

Nine row comb The "nine rows" of a nine row comb is a general term that refers to a comb with multiple rows of parallel teeth that can penet