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Practical and new-style patent: Ц of extensive establish A points to spring bli
From;    Author:Stand originally
Application date: 98221486.3 applies for day: 1998.06.10 name: Compound conduit makes public a kind of glass reinforced plastics (announcement) date: CN2386298 makes public (announcement) day: 2000.07.05 advocate classify date: F16L9/16 cent case files order formerly: Classify date: F16L9/16 promulgates card day: 2000.04.28 lien: Application (patent) person: Civil address of factory of forklift of the superhuman strength that enter town: Article of 264400 Shandong province ascends armour of road of city horizontal hill 3 inventions (design) person: International of of Chen Shousong of; of Lv Shaojun of Wu Xinzhang; applies for: International announces: Enter national date: Patent representative orgnaization: Patent office of power sea city is procuratorial: Yang Qingyan summary

This practical and new-style involve multiple tube of a kind of glass reinforced plastics to, its set liner canal, liner sets vitreous fine layer outside the canal, the termination liner that its feature depends on conduit sets protruding shoulder connect between canal and fibre glass layer, protruding end shows taper. This practical and new-style construction is reasonable, contact is firm, bear pressure is strong, not leakage, service life is long, can extensive in the stone, conduit that changes an industry applying.

Above picture is picked from website of bureau of national intellectual property, basically show need with Yu Wenzhang. Picture and picture content belong to this company all.