The main component of carbon black is carbon, requiring strong coloring force, ink, basically we see 99% of the black material, is also used to do rubber reinforcing agent.
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Shenzhen Ruichi Communication Technology Co., Ltd.: OEM factory for the used phone, refurbished phone and mobile repairing components such as the unlocked motherboard, original battery, LCD and OLED
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Topway Dental Laboratory: Full-service Certified Dental Laboratory (CDL), your reliable outsourcing and cost-saving partner in Shenzhen, China the most experienced, providing you with a full range of
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