4mm coroplast sheets are a new environmentally friendly 4mm thick, 650g gram polypropylene sheet made from extruded hollow sections of non-toxic, 100% PP polypropylene, consisting of two flat walls
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Sichuan Keliyuan Electronics Co., Ltd: We're known as one of the most professional mobile accessories, power strip, wall socket, floor socket, home appliance manufacturers and suppliers in China. Our
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Hydration catalyst is crystalline ZSM-5 molecular sieve catalyst, which is used for reaction in slurry state; It is a aluminosilicate catalyst, its active point is H+acid, and its crystal form is
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