系列品种价格4月30日5月6日涨跌精梳系列J21支24200242000JM21支2460024500100JMS21支2510024900200JMS20支2500024800200JMS32支2660026400200J26支24700247000J30支25100251000J32支2570025600100J36支2660026400200J40支2