What is the fine-grained topic of the following text: Industry News-PVC floor (dry bottom floor) pre-installation requirements: Manufacturers - Zhejiang Ruitai Plastic Co., Ltd.
 All interior decoration work (including paint) is not completed, and PVC flooring should not be constructed unless proper coverage protection is provided to prevent PVC floor from being contaminated or damaged. Only return the topic.
Pre-installation requirements for PVC flooring