Chinese political advisors on Thursday put their heads together to offer suggestions on the revision of the country's Law on the Prevention and Control of Water Pollution. China's economic planner vows more efforts to reform China's economic planner has pledged more efforts to push forward structu...
PROBLEM TO BE SOLVED: To provide a mold of a casting apparatus capable of venting gas inside a product cavity without allowing to molten metal leak to the outside even a large product without using a vent valve, and a method for venting gas inside the mold.MIHARA TAKASHI...