Tham khảo tài liệu 'mechanical estimating manual episode 9', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 148 Mechanical Estimating Manual Low Pressure Spiral DuDbvork Shop Hours Straight Hours Per Foot Fittinge Hours Per Piece Manual Fabrication Diameter Straight i Offset Wye 88888 Miters Peducer Tap Pi8888 90T ii i Sq Rnd Cross RdLat LatCross 4 8888 8888 88888 8888 8888 88888 8888 8888888 5 255 6 255 7 095 264 255 8 8888 8888 88888 8888 8888 88888 8888 8888888 9 272 10 1 23 283 12 309 8888 8888 8888 88888 8888 8888 88888 8888 8888888 16 . 235 18 216 20 8888 8888 8888 88888 8888 8888 88888 8888 8888888 24 26 28 804 8888 8888 8888 88888 8888 8888 88888 8888 8888888 32 34 456 36 952 8888 8888 8888 88888 8888 8888 88888 8888 8888888 40 42 529 948 616 44 8888 8888 8888 88888 8888 8888 88888 8888 8888888 48 50 52 616 . 11 36 8888 8888 8888 88888 8888 8888 88888 8888 8888888 56 58 908 60 13 60 693 938 800 Spiral and Light Gauge Round Ductwork 149 L w Pressure Spiral Duchvork Shop Hours Straight Hours Per Foot Fittinge Hours Per Piece Automated Fabrication Diameter Straight i Offset Wye 88888 Miters peducer Tap 90T ii i Sq Rnd Cross RdLat LatCross 4 88888 8888 88888 8888 8888 88888 8888 8888888 5 0W8 .
