ISBN: 9787504575340 - 金属热加工安全操作规程标准与技术 (1 Ergebnisse)

paperback. Zustand: New. Language:Chinese.Pages Number: 168 Publisher: China Labor and Social Security Publishing House Pub. Date: 2009 - 04 The book Modern enterprise security procedures of Standards and Technology Series one. Thermal processing generally refers to the metal casting. forging. welding and heat treatment. etc. which is characterized by the production process is often accompanied with high temperatures. toxic gases. dust and noise. poor working conditions. prone to injury accidents. From the practical. …