Yus li cas yog qhov ntaub ntawv loog thiab nws cov siv tshaj plaws yog dab tsi?
Qhov ntaub ntawv loog thiab yog ib qho ntaub ntawv tshwj xeeb uas tau ua los ntawm qhov ntaub ntawv rooj (tshwj xeeb yog qhov ntaub ntawv Himalayan pink salt, ntaub ntawv ntawm dej, lossis ntaub ntawv rooj) uas muaj qhov txheeb xyuas ntawm ntaub ntawv, cov ntaub ntawv ntau yam, thiab qhov ua rau ntaub ntawv loog thiab nyob rau hauv dej. Nws tau siv dav rau ntau yam: kev kho lub tsev (ua rau lub tsev, lub qhov rooj, lossis cov ntaub ntawv loog thiab rau kev kho tsev los ntawm qhov txheeb xyuas ntawm ntaub ntawv), kev noj qab los ntawm kev paub (ntaub ntawv Himalayan loog thiab rau kev kho dej, kev tshem dej thiab kev tshem qhov tsis zoo ntawm dej.
Cov cheeb tsam twg yog cov cheeb tsam uas siv ntau tshaj plaws rau kev siv ntaub ntawv loog thiab?
Cov cheeb tsam uas siv ntau tshaj plaws yog Pakistan (yog cov cheeb tsam uas siv ntau tshaj plaws rau qhov ntaub ntawv Himalayan pink salt loog thiab, thiab muaj ntau yam ntaub ntawv rooj zoo tshaj plaws), Iran, Lub Tswv Yim Tuam Tshoj (ntaub ntawv loog thiab los ntawm cov ntaub ntawv rooj hauv dej), Suav (muaj kev ua haujlwm zoo rau cov ntaub ntawv loog thiab ntau yam), thiab Indi. Cov cheeb tsam no yog cov uas siv ntau tshaj plaws rau lub ntiaj teb vim tias lawv muaj ntau yam ntaub ntawv hauv dej, kev ua haujlwm zoo rau kev sib tham, thiab kev ua haujlwm rau kev siv ntau yam.
Yus qhov kev tswj hwm txheeb xyuas yuav tsum kawm rau thaum nrhiav qhov ntaub ntawv hlau?
Cov qhov tseem ceeb uas tsum xav siv yog: cov ntaub ntawv sodium chloride (NaCl) (≥95% rau cov ntaub ntawv zoo tshaj plaws), cov ntaub ntawv dej (<3% los ntshai kom tsis tau muaj dej hauv), qhov ntau (≥3 Mohs los ntshai kom tsis tau muaj kev tawg), cov ntaub ntawv khoob ntau, thiab cov ntaub ntawv heavy metal.
Yus qhov ntaub ntawv hlau tau muab muab rau hauv qhov kawg li cas rau kev xa mus rau lub ntiaj teb?
Cov ntaub ntawv hlau li cas (≤30cm) feem ntau tau muab muab rau hauv cov ntaub ntawv plastic lossis foam uas tsis muaj dej, tom qab ntawd tau muab rau hauv cov kab mob lossis cov kab mob hlau los ntshai kom tsis tau tawg thiab kom tsis muaj dej hauv. Cov ntaub ntawv hlau loj uas siv rau kev tshuaj thiab cov ntaub ntawv hlau loj feem ntau tau muab rau hauv cov kab mob thiab muab rau hauv cov ntaub ntawv stretch film los ntshai kom muaj kev nyab xeeb. Nws yog qhov tseem ceeb heev los muab cov lus piav qhia txog cov ntaub ntawv (li cas, qhov zoo), cov lej ntawm cov ntaub ntawv, thiab cov lus piav qhia txog kev nyab xeeb (piv txwv li "Tso cua rau qhov qhuav", "Tso cua rau qhov tawg", "Tso cua rau qhov dej") rau hauv cov kab mob. Feem ntau muab cov ntaub ntawv desiccant rau hauv cov kab mob los ntshai kom tsis muaj dej hauv.
Yus qhov kev sib tham tshwj xeeb uas feem ntau siv rau kev sib tham txog cov ntaub ntawv hlau yog dab tsi?
Cov lus sib txuas tseem ceeb yog FOB (Free On Board), CIF (Cost, Insurance and Freight), thiab EXW (Ex Works). Cov lus sib txuas no yog nyob ntawm kev sib tham ntawm cov kws muab thiab cov kws kho mob txog kev pab txhawb kev tswj hwm rau kev xa mus, kev qaug ntau ntawm kev xa mus, thiab kev pov tseg rau kev tsis zoo—yog li cas, kev tsis zoo ntawm dej thiab kev puas yog cov qhov tseem ceeb rau kev xa mus ntawm cov ntaub cua.
Yog dab tsi cov ntaub ntawv tseem ceeb uas yuav tsum muaj rau kev xa mus ntawm cov ntaub cua?
Cov ntaub ntawv tseem ceeb uas yuav tsum muaj yog cov lus qhia tshem, cov lus qhia tshem rau kev sau, cov lus qhia tshem rau kev xa mus (B/L) lossis cov lus qhia tshem rau kev xa mus los ntawm lub ntiaj teb, cov lus qhia tshem rau kev muaj los ntawm qhov twg, thiab cov lus qhia tshem rau kev ua kom paub tias cov ntaub cua yog zoo (piv txwv li: kev ua kom paub tias cov ntaub cua yog zoo, kev ua kom paub tias muaj dej, thiab kev ua kom paub tias muaj cov ntaub ntawv tshem)
Yog dab tsi cov kev pab tshem uas cov kws muab cov ntaub cua tuaj yeem txhawb?
Cov neeg siv khoom tuaj yeem txhawb nqa cov lus ntawv (LC), cov lus txhawb nqa los ntawm lub tshuab (TT), lossis cov rooj plaub uas muaj kev nyab xeeb (piv txwv li: Alibaba Trade Assurance). Qhov yuam kev ua haujlwm tseem ceeb yog qhov uas koj yuav tsum xa 30% ua qhov tso cai kom paub tias koj xav tau cov khoom, thiab qhov kawg yuav tsum xa ua ntej koj khiav cov khoom los ntawm lub tshuab lossis thaum koj muaj cov lus ntawv ntawm B/L—qhib no yuav pab tswj cov khoom zoo thiab txo qhov ris kaub rau ob qhov tsev.
Yog puas muaj cov khoom uas tau tsim los ntawm cov dej ntawv uas tuaj yeem muab tsim raws li kev xav tau?
Yog, cov neeg siv khoom tuaj yeem muab cov khoom uas tau tsim raws li kev xav tau ntawm cov neeg siv khoom, piv txwv li: Cov khoom uas tau tsim los ntawm cov dej ntawv Himalayan pink salt uas muaj kev tshuaj ntxiv (raws li rau hauv cov tshuab saunas thiab cov tshuab nyab xeeb), Cov khoom uas tau tsim los ntawm cov dej ntawv uas muaj kev kho (raws li rau hauv kev tsim cov tshuab nyab xeeb uas muaj cov ntsiab ntsiab zoo), Thiab cov khoom uas tau tsim los ntawm cov dej ntawv uas muaj kev kho (cov lus uas tau tsim raws li kev xav tau rau hauv kev xa khoom lossis rau hauv kev tsim cov tshuab nyab xeeb).