3/8x1/4,1/2x1/4,1/2x3/8半导体pfa氟塑料变径焊接弯头

3/8x1/4,1/2x1/4,1/2x3/8PFA经典款变径直通焊接接头

1x1/2,3/4x1/2,3/8x1/4变径弯头焊接二通管接头

3/4x1/2，3/8x1/4，1-1/4x1变径直通焊接接头