Polyurethane hard foam is prepared by reacting hard foam polyether polyols (polyurethane hard foam combination polyethers、 also known as white materials) with polymerized MDI (also known as black materials). It is mainly used to prepare rigid polyurethane foam、 which is widely used in refrigerator、 cold storage、 spraying、 solar energy、 thermal pipeline、 building and other fields. According to their uses and fields、 they are divided into hard foam polyether polyols、 imitation wood polyethers、 cyclopentane system hard foam polyether polyols、 all water polyethers、 and flame retardant polyethers. Among them、 imitation wood polyether is mainly used for imitation wood products、 all water polyether is mainly used for all water pipeline foaming、 and flame retardant polyether is used for preparing products with high flame retardant requirements p>
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific、 fair、 and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsinspection and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered、 meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing、 with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle、 low cost、 and attentive service 7. Possess authoritative qualifications such as CMA、 CNAS、 CAL、 etc 8. The testing report is authoritative and effective、 and is generally used in China