Vendeur : liu xing, Nanjing, JS, Chine
paperback. Etat : New. Paperback. Pub Date: 2015-10-01 Pages: 109 Language: Chinese Publisher: China Labor and Social Security Publishing House August 15. 2014. State Administration of Work Safety Order No. 68 published prevent dust explosion five business regulations . Prevent dust explosion five business provisions efforts to resolve the security problems of the current mining and commercial industries involving coal. aluminum. magnesium. zinc powder. flour. starch. flour and other explosive dust workplace. Preve. N° de réf. du vendeur CX031551
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