Main components and materials No. Name GB Standard 1 Body ductile iron QT450-10 2 Nodular ductile iron QT450-10 3 Rubber EPDM 4 Upper shaft stainless steel 1Cr13 5 Lower shaft stainless steel 1Cr13 6 O-ring Nitrile 7 Positioning gear carbon steel 45 # 8 handle Masteel 9 wire plug carbon steel 45 #
Linsn Receiving Card for Led Display,Double Sided LED Display Screen,Double Sided Outdoor Led Display
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