Khaws rau hauv qhov chaw txias, tshuab ua kom muaj zog. Tseg deb ntawm hluav taws thiab cov khoom cua sov. Nws yuav tsum tau muab cais cais los ntawm oxidants, txo cov neeg sawv cev, acids, alkalis, thiab tshuaj noj kom huv thiab tsis txhob sib xyaw. Nruab nrog cov khoom tsim nyog ntau thiab ntau thiab ntau ntawm cov khoom siv hluav taws. Cov chaw cia khoom yuav tsum tau nruab nrog cov khoom siv kub ceev thiab cov khoom siv cia khoom haum.
Nyiaj them
1, t / t 2, l / c 3, vixaj 4, credit card 5, paypal 6, Alibaba Kev Tsim Kho Kev Lag Luam 7, Western Union 8, MoneyGram 9, ntxiv rau, qee zaum peb kuj lees txais Bitcoin.
Lub sijhawm khoom xa tuaj
1, kom muaj nuj nqis: 1-1000 kg, tsis pub dhau 3 hnub ua haujlwm tom qab tau txais kev them nyiaj 2, kom muaj nuj nqis: saum 1000 kg, tsis pub dhau 2 lub lis piam tom qab tau txais nyiaj.
