18禁黄无遮挡免费网站_日本级香港三级人妇_高清无码免费黄色网站_99秒拍福利视频你懂的-97色色99这里只有精品,亚洲ⅴa中文字幕无码毛片,91超碰国产一级,亚洲欧美国

Tel: 18052162330 | | 中文 | ENLISH
News
Your current location: Home News
Basic knowledge of glass bottle products Release time: 2020-04-21 Visited: 794 Times

Glass bottle is widely used in cosmetics industry because of its good sealing performance, stable chemical property, light transmission and sealing material, long-term preservation of products highly sensitive to humidity, free and variable shape, high hardness, heat-resistant, clean and easy to clean, and can be reused. Due to the manufacturing characteristics of glass (the furnace is not allowed to stop at will), in the case of no spot inventory, the general starting order requirements range from 30000 to 100000, 200000, and the manufacturing cycle is long, generally about 30 to 60 days. The larger the order, the more stable the quality of glass. But glass bottle also has its disadvantages, such as heavy weight, high cost of transportation and storage, impact resistance and so on.