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英文模板验工付款申请函
letter form of appllication for interim payment
a query sheet form
英文信件模板，用于提交图纸问题。
常用英标设计及施工规范
code of practice for use of masonary BS5628-1； weights of construction materials BS648; Vitrified clay pipes for use wit
管道与阀门法兰连接英标规范BS10
4336651BRITISH STANDARD, FLANGES AND BOLTING FOR PIPES, VALVES AND FITTINGS
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