If you are engaged in the following occupations, the prevention of carbon black pneumoconiosis.

(1) Paper and paper products industry: paint formulated colorants preparation

(2) Educational and Sports Goods: Ribbon preparation

(3) other basic chemical raw materials manufacturing industry: carbon black preparation, granulation

(4) Daily Chemical Products Manufacturing: Matches pulp

(5) Rubber products: rubber, mixing

(6) refractory products industry: Refractories ingredients, forming

(7) graphite and carbon products industry: carbon crushed ingredients, calcination, screening, molding, cooling treatment \ packaging

(8) rare metals smelting industry: tungsten carbide preparation, duplex tungsten carbide prepared niobium preparation

(9) electrical machinery and equipment manufacturing industry: manganese dioxide batteries preparation, the battery core system with mixing powder, carbon rods, cables and wires backlog