​管塞堵头1/16 BR06 ST06 SS06 .25 .31 1/8 BR12 ST12 SS12 .25 .31 1/4 BR25 ST25 SS25 .40 .43 3/8 BR37 ST37 SS37 .40 .50 1/2 BR50 ST50 SS50 .53 .56 3/4 BR75 ST75 SS75 .53 .62 1 BR100 ST100 SS100 .65 .75 1-1/4 BR125 ST125 SS125 .65 .75 1-1/2 BR150 ST150 SS150 .65 .75 2 BR200 ST200 SS200 .65 .75                                                                                  1/16 BRHD06 .296 1/8 BRHD12 .312 1/4 BRHD25 .421 3/8 BRHD37 .510 1/2 BRHD50 .625 3/4 BRHD75 .625                                                                                            1/16-28 BSPT BR06-BSP ST06-BSP SS06-BSP 6 1/8-28 BSPT BR12-BSP ST12-BSP SS12-BSP 8 1/4-19 BSPT BR25-BSP ST25-BSP SS25-BSP 10 3/8-19 BSPT BR37-BSP ST37-BSP SS37-BSP 10 1/2-14 BSPT BR50-BSP ST50-BSP SS50-BSP 10 3/4-14 BSPT BR75-BSP ST75-BSP SS75-BSP 13 1-11 BSPT BR100-BSP - - 14 1 1/4-11 BSPT BR125-BSP - - 14