1. dust-free drywall sander 2. CE patent sander 3. labour saving sander 4.outer wall: above 800sq.m./8h 5.rub Inner corner Detailed Product Description1. Environmental friendly sander2. dust-absorption rate up to 98%3. top-quality with reasonable price4. new invention5. patent product & portable6. convenient to carry7. can rub internal corner8. Universal use9. CE (EMC+LVD+MD)10. Applicable Scope: ...