精品文献
astm1030铸钢
管道材料等级表1030
DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1100 1200 1300 1400 1500 1600 英寸 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 4 5 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 44 48 52 56 60 64 15 1/2 S 20 3/4 SR S 25 1 SR SR S 32 1 1/4 SR SR SR S 40 1 1/2 C SR SR SR S 50 2 C TR TR TR TR T 65 2 1/2 C C TR TR TR TR T 80 3 C C C TR TR TR TR T 100
CBM1037-81法兰铸钢防浪阀
CBM1037-81法兰铸钢防浪阀