HARAKAJibu
HARAKANukuu
HARAKAUwasilishaji
TAYARI KWA KULETWA KWA MELI
10000+ SKU katika ghala
Tunajitolea kwa vitu vya RTS:
70% vitu vilivyowasilishwa ndani ya siku 5
80% vitu vilivyowasilishwa ndani ya siku 7
90% vitu vilivyowasilishwandani ya siku 10
Maagizo mengi, tafadhali wasiliana na huduma kwa wateja
Tafadhali wasiliana nasi kwa maelezo zaidi, kama vile uzito, vipimo vya kufunga, orodha ya bei, na kadhalika.
Dia/d | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 5/8 | 3/4 | 7/8 | 1 | 1-1/8 | 1-1/4 | 1-3/8 | 1-1/2 | |
PP | UNC | 20 | 18 | 16 | 14 | 13 | 11 | 10 | 9 | 8 | 7 | 7 | 6 | 6 |
UNF | 28 | 24 | 24 | 20 | 20 | 18 | 16 | 14 | 12 | 12 | 12 | 12 | 12 | |
8-UN | - | - | - | - | - | - | - | - | - | 8 | 8 | 8 | 8 | |
ds | max | 0.26 | 0.324 | 0.388 | 0.452 | 0.515 | 0.642 | 0.768 | 0.895 | 1.022 | 1.149 | 1.277 | 1.404 | 1.531 |
min | 0.237 | 0.298 | 0.36 | 0.421 | 0.482 | 0.605 | 0.729 | 0.852 | 0.976 | 1.098 | 1.223 | 1.345 | 1.47 | |
s | max | 0.438 | 0.5 | 0.562 | 0.625 | 0.75 | 0.938 | 1.125 | 1.312 | 1.5 | 1.688 | 1.875 | 2.062 | 2.25 |
min | 0.425 | 0.484 | 0.544 | 0.603 | 0.725 | 0.906 | 1.088 | 1.269 | 1.45 | 1.631 | 1.812 | 1.994 | 2.175 | |
e | max | 0.505 | 0.577 | 0.65 | 0.722 | 0.866 | 1.083 | 1.299 | 1.516 | 1.732 | 1.949 | 2.165 | 2.382 | 2.598 |
min | 0.484 | 0.552 | 0.62 | 0.687 | 0.826 | 1.033 | 1.24 | 1.447 | 1.653 | 1.859 | 2.066 | 2.273 | 2.48 | |
k | max | 0.188 | 0.235 | 0.268 | 0.316 | 0.364 | 0.444 | 0.524 | 0.604 | 0.7 | 0.78 | 0.876 | 0.94 | 1.036 |
min | 0.15 | 0.195 | 0.226 | 0.272 | 0.302 | 0.378 | 0.455 | 0.531 | 0.591 | 0.658 | 0.749 | 0.81 | 0.902 | |
r | max | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.06 | 0.06 | 0.06 | 0.09 | 0.09 | 0.09 | 0.09 | 0.09 |
min | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.02 | 0.02 | 0.02 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | |
b | L≤6 | 0.75 | 0.875 | 1 | 1.125 | 1.25 | 1.5 | 1.75 | 2 | 2.25 | 2.5 | 2.75 | 3 | 3.25 |
L>6 | 1 | 1.125 | 1.25 | 1.375 | 1.5 | 1.75 | 2 | 2.25 | 2.5 | 2.75 | 3 | 3.25 | 3.5 |
Dia/d | 1-5/8 | 1-3/4 | 1-7/8 | 2 | 2-1/4 | 2-1/2 | 2-3/4 | 3 | 3-1/4 | 3-1/2 | 3-3/4 | 4 | |
PP | UNC | - | 5 | - | 4-1/2 | 4-1/2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
UNF | - | - | - | - | - | - | - | - | - | - | - | - | |
8-UN | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | |
ds | max | 1.658 | 1.785 | 1.912 | 2.039 | 2.305 | 2.559 | 2.827 | 3.081 | 3.335 | 3.589 | 3.858 | 4.111 |
min | 1.591 | 1.716 | 1.839 | 1.964 | 2.214 | 2.461 | 2.711 | 2.961 | 3.21 | 3.461 | 3.726 | 3.975 | |
s | max | 2.438 | 2.625 | 2.812 | 3 | 3.375 | 3.75 | 4.125 | 4.5 | 4.875 | 5.25 | 5.625 | 6 |
min | 2.356 | 2.538 | 2.719 | 2.9 | 3.262 | 3.625 | 3.988 | 4.35 | 4.712 | 5.075 | 5.437 | 5.8 | |
e | max | 2.815 | 3.031 | 3.248 | 3.464 | 3.897 | 4.33 | 4.763 | 5.196 | 5.629 | 6.062 | 6.495 | 6.928 |
min | 2.616 | 2.893 | 3.099 | 3.306 | 3.719 | 4.133 | 4.546 | 4.959 | 5.372 | 5.786 | 6.198 | 6.612 | |
k | max | 1.116 | 1.196 | 1.276 | 1.388 | 1.548 | 1.708 | 1.869 | 2.06 | 2.251 | 2.38 | 2.572 | 2.764 |
min | 0.978 | 1.054 | 1.13 | 1.175 | 1.327 | 1.479 | 1.632 | 1.815 | 1.936 | 2.057 | 2.241 | 2.424 | |
r | max | 0.09 | 0.12 | 0.12 | 0.12 | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 |
min | 0.03 | 0.04 | 0.04 | 0.04 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | |
b | L≤6 | 3.5 | 3.75 | 4 | 4.25 | 4.75 | 5.25 | 5.75 | 6.25 | 6.75 | 7.25 | 7.75 | 8.25 |
L>6 | 3.75 | 4 | 4.25 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 |
UNC inarejelea nyuzi mbovu katika mfululizo wa Umoja wa Mataifa wa Umoja wa Mataifa (hiari ya radius ya mizizi ya nje).
Matibabu ya uso wa Oksidi Nyeusi ni nini?
Oksidi nyeusi, njia ya kawaida ya matibabu ya uso wa kemikali. Oksidi nyeusi ni njia ya kawaida ya matibabu ya uso wa kemikali. Kanuni ni kuzalisha filamu ya oksidi kwenye uso wa chuma ili kutenganisha hewa na kufikia madhumuni ya kuzuia kutu. Wakati mahitaji ya kuonekana si ya juu, nyeusi inaweza kutumika, na uso wa sehemu za chuma ni nyeusi, ambayo pia huitwa bluu.
Mbinu zinazotumiwa sana za matibabu ya oksidi nyeusi ni pamoja na uwekaji weusi wa joto wa alkali na weusi wa halijoto ya chumba ambao hutokea baadaye. Hata hivyo, mchakato wa nyeusi kwenye joto la kawaida haifai sana kwa chuma cha chini cha kaboni. Weusi wa alkali umegawanywa, na kuna tofauti kati ya nyeusi mara moja na nyeusi mara mbili. Sehemu kuu za kioevu nyeusi ni hidroksidi ya sodiamu na nitriti ya sodiamu. Tofauti ya joto inayohitajika kwa nyeusi sio kubwa, na uso mzuri unaweza kupatikana kati ya 135-155 ° C, lakini muda unaohitajika ni mrefu kidogo.
* Mchoro ufuatao unabainisha incoterms tofauti za biashara. Tafadhali chagua unayopendelea.
Ubora Kwanza, Usalama Umehakikishwa