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Ban smilett than men minh dang phan tích cac kim laoi cu,Pb,zn, trong nuoc thai ma nong do cua no thap khoảng 50 ppb bangmay shimazu 6800 cho minh hoi cach pha mau ,xu ly mau ach dung duong chuan duoc ko
dia mail cua minh la [email]phantuankietnd12@gmail.com[/email]