Problem: Add spaces: Purepolyureaisextremelyfastcuring,hasexcellentchemicalresistanceandissuitableforimmersionandwaterproofing.

Spaces added: Pure polyurea is extremely fast curing, has excellent chemical resistance and is suitable for immersion and waterproofing.

Problem: Add spaces: Thereisalackofqualifiedstaffmanyschools,toteachtheindividualprofessionalsports.

Spaces added: There is a lack of qualified staff many schools, to teach the individual professional sports.

Problem: Add spaces: Youcanchooseanyofour3mainwebsites.

Spaces added: You can choose any of our 3 main websites.

Problem: Add spaces: DuringtheWarringStatesperiodinChinafrom480to221BCEthereweresixmajorstatesvyingfordomination.

Spaces added:
During the Warring States period in China from 480 to 221 BCE there were six major states vying for domination.