Our main products are black building paper and roofing felt which are in conformity with ASTM standards of U.S.A.

The specifications of black building paper:

    30 minute paper,

    60 minute paper,

    90 minute paper

    120 minuter paper

The specifications of roofing felts:

    ASTM D-4869, Type I 15#, Type ? 30#;

    ASTM D-226,   Type I 15#, Type ? 30#;

    ASTM D-6380,  Class M,  Type?90#;

    ASTM D-225, Type III