Koj yeej xav paub meej cov lus saum toj no ua ntej sau cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej sau cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua ntej kho cov lus hauv qab no ua......

Nyob rau hauv kev lag luam tshiab, qhov chaw siv cov khoom siv hluav taws xob hluav taws xob muaj ntau dua, ntau qhov chaw loj yuav siv cov khoom siv hluav taws xob hluav taws xob, ua ntej ib co ntau tus neeg sau tsaus nug txog kev xaiv cov khoom siv hluav taws xob, hnub no kuv tseem ceeb qhia txog cov lus paub txog cov khoom siv hluav taws xob, kom koj paub.

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cov lus qhia txog qhvi thiab qhvi

1. Lub qhvi hnyi ntawm hluav taws xob: lub hauv ntim feem ntau los ntawm 2.5 ~ 12 mm;

2. Kev ceev npoo: Qhov siab ntawm qhov npoo yuav tsum muaj 0.2 txog 0.3 zaug ntawm qhov hnyav ntawm cov roj teeb, tab sis tsis txawv ntau tshaj 0.5 mm. Qhov loj ntawm diamond yog qhov dav ntawm ob kab uas ua kom zoo; Qhov loj ntawm qhov npoo yuav tsum muaj qhov khoov rau kev ua siab.

3. Zoo ua kev kho mob zoo hauv ntu mob siab (900℃ ~ 950℃), austenite grains tsis huv siab, thiab muaj kev nkag siab zoo.

Kev rich cov nta ntawv

1. Daim duab: qhov tseeb tshuaj yog qhov hnyav ntawm daim roj teeb, lub kauj ruam ntawm Suav teb qhia tias nws qhov hnyav tsis txawv ntau tshaj 10 mm ib met.

2. Qhov chaw nruab: qhov chaw nruab ntawm daim roj teeb yuav tsum tsis muaj kab mob, kab mob, kab mob, kab mob, thiab kab mob. Daim roj teeb muaj npoo yog daim roj teeb uas muaj diamond lossis npoo yuav tsum muaj kab uas ua kom zoo hauv ntu nrog nws tus kheej siab.

Saum toj no yog ib qho lus piav qhia yooj yim rau qhov ntxhuav hlav hlau, Kuv xav tias koj yuav muaj kev paub ntau ntxiv txog ntxhuav hlav hlau, yog tias muaj tej lus nug txog ntxhuav hlav hlau, thov los nug peb.