PF1/8-28PF1/4-19PF3/8-19PF1/2-14PF5/8-14PF3/4-14PF7/8-14PF1-11PF11/4-11PF11/2-11PF2-11 PF3-11PF4-11PF5-11PS1/8-28PS1/4-19PS3/8-19PS1/2-14PS5/8-14PS3/4-14PS1-11PS11/4-11PS11/2-11PS2-11PS21/2-11PS3-11PS31/2-11PS4-11PS5-11PS6-11七.NPSM美制管用平行螺紋規(guī)格NPSM1/8-27NPSM1/4-18NPSM3/8-18NPSM1/2-14NPSM3/4-14NPSM1-111/2NPSM11/4-111/2NPSM11/2-111/2NPSM2-111/2NPSM21/2-8NPSM3-8NPSM4-8NPSM5-8NPSM6-8