碳钢手动高真空蝶阀 GI-40， 无锡油研流体科技有限公司

p1Src=//y1.yzimgs.com/uploads/383705/20221120-85512819.jpg?watermark/2/text/5peg6ZSh5rK556CU5rWB5L2T56eR5oqA5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/700/fill/I0E3QTlBOA==/gravity/SouthEast