Niaj hnub nimno mahjong feem ntau yog ua los ntawm yas.Niaj hnub no peb yuav tham txog cov khoom siv los ua mahjong.
1. Melamine resin
Taiwan mahjong yuav yog mahjong tshaj plaws ntawm kev ua lag luam.Lub npe hu ua "Taiwan mahjong" tsis yog tsim nyob rau hauv Taiwan.Nws hais txog mahjong tsim los ntawm Taiwan cov khoom siv tes ua.Cov khoom siv yogmelamine compound.Lub tshuab mahjong no tsuas yog siv rau hauv kev tsim cov tshuab mahjong tsis siv neeg.Cov yam ntxwv tseem ceeb ntawm melamine mahjong yog ntau tus phooj ywg ib puag ncig, siab zog, siab hardness, du zoo, hnav-resistant, poob-resistant, yog li tsim nyog rau kev siv mus ntev.
2. Crystal acer
Crystal acrylic mahjong feem ntau kim vim yog tus nqi siab ntawm cov khoom nws tus kheej.Acrylic hais tshwj xeeb rau cov ntshiab polymethylene acrylates (PMMA) uas yog acrylic.Nws muaj lub siab pob tshab, 92% lub teeb kis tau tus mob, thiab lub koob npe nrov li "cov yas siv lead ua".Nws muaj qhov zoo ntawm qhov tawv tawv thiab gloss, ua cov yas yog qhov loj, tab sis nws cov khawb kuj tsis zoo dua li melamine.
Ntxiv nrog rau melamine mahjong,melamine molding compoundtuaj yeem siv los ua Go thiab Suav Chess.
Post lub sij hawm: Aug-28-2020