共 50 条
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- [29] NEW STRUCTURAL FOAM MOLDING PROCESS CUTS RESIN COST BY 25-PERCENT MODERN PLASTICS, 1986, 63 (09): : 28 - 28
- [30] KING POST TRUSS SYSTEM CUTS ROOF FRAMING COST BY 30PERCENT CIVIL ENGINEERING, 1977, 47 (06): : 49 - 51