معنى مفرشة الزفت في القاموس

PITCH AND PITCH COKE, OBTAINED FROM COAL TAR OR FROM OTHER MINERAL TARS

WOOD TAR; WOOD TAR OILS; WOOD CREOSOTE; WOOD NAPHTHA; VEGETABLE PITCH; BREWERS PITCH AND SIMILAR PREPARATIONS BASED ON ROSIN, RESIN ACIDS OR ON VEGETABLE PITCH