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HEBEI QUNBANG CHEMICAL CO., LTD

All Products >> refractory material

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coal tar pitch
coal tar pitch
Specification: 10# construction bitumen
Detail: 10# construction bitumen is reduced by the depth of the oxidation residue as raw material production. The product penetration always, good ductiloity, softening point, low brittle point, elasticity. Crack resistance, insulatio...
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