
■Nta:
Peb siv zog ua kom zoo meej rau txhua qhov me me.
Cov khoom siv yas ua rau cov khoom siv sib dua thiab me me, cov hlau rivet txiv ntoo ua rau kev pabcuam ntev dua
lub neej. Lub tes tsho nrog ntau qhov ntau thiab tsawg rau kev xaiv yog qhov yooj yim heev rau kev txuas thiab disconnect.
Kev ua tau zoo ntawm kev sib khi ua kom muaj txiaj ntsig zoo.
Lus Cim:
1. NPT, PT, G xov yog xaiv tau.
2. Xim ntawm lub tes tsho yeeb nkab tuaj yeem hloov kho.
3. Hom fttings tshwj xeeb kuj tuaj yeem hloov kho.

| Nti Yeeb Nkab | Cov Yeeb Nkab Metric | OED | R | Ib | B | H | F | J | Oed |
| SPWB5/32-M5 | SPWB4-M5 | 4 | M5 | 4.5 | 68 | 10 | 37 | 12 | 2.5 |
| SPWB5/32-01 | SPWB4-01 | 4 | PT1/8 | 7 | 68.5 | 10 | 37 | 12 | 2.5 |
| SPWB5/32-02 | SPWB4-02 | 4 | PT1/4 | 9 | 71.5 | 14 | 37 | 12 | 2.5 |
| SPWB1/4-M5 | SPWB6-M5 | 6 | M5 | 4.5 | 75 | 12 | 43 | 13.5 | 3.5 |
| SPWB1/4-01 | SPWB6-01 | 6 | PT1/8 | 7 | 76 | 12 | 43 | 13.5 | 3.5 |
| SPWB1/4-02 | SPWB6-02 | 6 | PT1/4 | 9 | 78 | 14 | 43 | 13.5 | 3.5 |
| SPWB1/4-03 | SPWB6-03 | 6 | PT3/8 | 10 | 79 xyoo | 17 | 43 | 13.5 | 3.5 |
| SPWB1/4-04 | SPWB6-04 | 6 | PT1/2 | 11 | 80.5 | 21 | 43 | 13.5 | 3.5 |
| SPWB5/16-01 | SPWB8-01 | 8 | PT1/8 | 8 | 88.5 | 14 | 55 | 17.5 | 4 |
| SPWB5/16-02 | SPWB8-02 | 8 | PT1/4 | 10 | 90.5 | 14 | 55 | 17.5 | 4 |
| SPWB5/16-03 | SPWB8-03 | 8 | PT3/8 | 10 | 91 xyoo | 17 | 55 | 17.5 | 4 |
| SPWB5/16-04 | SPWB8-04 | 8 | PT1/2 | 11 | 92 | 21 | 55 | 17.5 | 4 |
| SPWB3/8-01 | SPWB10-01 | 10 | PT1/8 | 8 | 104 | 17 | 62.5 | 20 | 4 |
| SPWB3/8-02 | SPWB10-02 | 10 | PT1/4 | 10 | 106.5 | 17 | 62.5 | 20 | 4 |
| SPWB3/8-03 | SPWB10-03 | 10 | PT3/8 | 10 | 107 | 17 | 62.5 | 20 | 4 |
| SPWB3/8-04 | SPWB10-04 | 10 | PT1/2 | 11 | 107 | 21 | 62.5 | 20 | 4 |
| SPWB1/2-02 | SPWB12-02 | 12 | PT1/4 | 10 | 123.5 | 19 | 71.5 | 23 | 4 |
| SPWB1/2-03 | SPWB12-03 | 12 | PT3/8 | 10 | 122.5 | 19 | 71.5 | 23 | 4 |
| SPWB1/2-04 | SPWB12-04 | 12 | PT1/2 | 11 | 124.5 | 21 | 71.5 | 33 | 4 |