... with sheet,tube two types. Usage :Bellsafe-flex (Class B1 )is widely used in heat preservation and insulation of central air conditioning system,and ... air-condition equipment. Meanwhile ,it is also applies to sports equipment accesory,medicine ,tobacco field ,etc. sponged rubber sheet, rubber sponge sheet/board/ Pipe rubber ... free to let me know .CertificateRohs, SGS,ISO ,MSDS . Rubber Insulation tube