Heli là nguyên tố thứ 2 trong bảng tuần hoàn. Nó là một chất khí không màu, không mùi, không vị và có nhiều ứng dụng xung quanh cuộc sống chúng ta, nổi bật nhất chính là khí bơm bóng bay.khitinhkhiethaophat.com/khi-y-te/khi-heli.html
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Công ty TNHH Khí Tinh Khiết Hào Phát chuyên mua bán bình khí nitơ tại Thành Phố Hồ Chí Minh và đặc biệt chúng tôi có dịch vụ cho
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