Zhejiang Altruism Technology Co., Ltd is mainly engaged in the designing and R&D of electric two-wheel vehicles, providing customers with a full range of services, such as product development,
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YIBAI PACKAGING is one of the most professional ziplock bag manufacturers and suppliers in China. If you're going to buy or wholesale bulk high quality ziplock bag in stock, welcome to get free sample
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ZHEJIANG YOUFENG NEW MATERIAL TECHNOLOGY CO.,LTD: As one of the most professional cigarette aluminum foil paper, cigarette tipping paper, cigarette inner frame, cigarette tear tape, chocolate aluminum
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ASTM A53. ASTM A53 is a carbon steel alloy, used for structural steel pipe. The alloy specifications are set by ASTM International, in specification ASTM A53/A53M[1].