Beijing Yuanhang Shiying Building Materials Co., Ltd. is a manufacturer of mass loaded vinyl, MLV(1LB/2LB), Backer Rod, Hot Backer Rod, High Temperature Resistance Backer Rod, swelling sealant, injection hose with well-equipped testing equipment and strong technical force.
With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in building construction and other industries.