GOST 32319-2012 Roofing and hydraulic-insulating flexible bitumen-based and holymeric (thermoplastic or elastomer) materials. Method for determination of resistance to root penetration
2012GOST 32319-2012 Roofing and hydraulic-insulating flexible bitumen-based and holymeric (thermoplastic or elastomer) materials. Method for determination of resistance to root penetration