The Jason soundproof wall system is composed of gypsum board and Jason's patented QW soundproof keel, designed for high demand soundproof places, with a maximum sound insulation capacity of up to 56 decibels. The Jason soundproof wall system is widely use

Jason Gold Formaldehyde Purification Board+adopts an imported formaldehyde capture formula, adsorbs formaldehyde and continuously purifies it, converting it into non-toxic and harmless inert carbohydrates, fixed in the gypsum board core, with an effective