Pyongyang, June 8 (KCNA) — The quality asbestos-slate produced in the Korea Yongcho Building-Materials Joint-Venture Company in the Democratic People’s Republic of Korea is popular at home and abroad.
It, furnished with latest machines and equipment, ensures the properly pulverized asbestos in the slate production. The compressing strength and tension of the asbestos slate are incomparably stronger than other slates’.
The asbestos-slate is proof against water, heat and severe frost and Its compressing strength is 290 kilograms per square meter.
resistant against shocking.
According to experts, its over 30 rounds of test under the temperatures between 30 degrees C below and above zero show no physical change.
The slate is made from “Kumgang”-branded cement, asbestos (A-5-65), glass fiber and wood pulp.
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