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Seller: liu xing, Nanjing JiangSu, JS, China
paperback. Condition: New. Paperback. Pub Date: 1985 Pages: 11 Language: Chinese in Publisher: China Building Industry Press for the protection of sewer maintenance job safety and health of workers. according to former State Urban Construction Administration and the National Bureau of Labor (81) City Fa Zi No. 247. by the Tianjin Municipal Engineering Bureau is responsible for the preparation of the safety technical specification for sewer maintenance. our joint review of currently approved for the Ministry of standard.
Seller: liu xing, Nanjing JiangSu, JS, China
paperback. Condition: Good. Man and the Biosphere exhibitions.
Published by China Environmental Science Press, 2000
ISBN 10: 7800102955ISBN 13: 9787800102950
Seller: liu xing, Nanjing JiangSu, JS, China
Book
paperback. Condition: Good. Urban ecosystem and integrated pollution prevention and control.