上游充通大粤 SHANGHAI JIAO TONG UNIVERSITY Estimating the costs of standard components >Finding venders from Thomas Register of American Manufacturers Estimating the costs of custom components >The cost of the original intake manifold's machined casting is estimated in Exhibit 11-7 on page 218 Estimating the cost of assembly >The cost of the redesigned intake manifold for assembly of the PCV(positive crankcase ventilation)is estimated in 11-80 n page219Estimating the costs of standard components  Finding venders from Thomas Register of American Manufacturers Estimating the costs of custom components  The cost of the original intake manifold’s machined casting is estimated in Exhibit 11-7 on page 218 Estimating the cost of assembly  The cost of the redesigned intake manifold for assembly of the PCV (positive crankcase ventilation) is estimated in 11-8 on page 219