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L-Serine (32)CAS RN:56-45-1
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Shijiazhuang Rich Pharmaceutical Co,. Ltd.Telephone:86-311-84338609
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NEW DRAGON CO., LTDTelephone:+86-574-87716276 87721076 87703994
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Sinolite Industrial Co.,Ltd.Telephone:+86-571-86772651
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Hangzhou Center Chemical Co.,Ltd.Telephone:+86-571-86820283
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Hangzhou Dingyanchem Co.,LtdTelephone:+86-571-87157530
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shanghai Xuxin Chemical Technology Co., LtdTelephone:+86-21-60890630
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Puho Pharmaceutical Co.,LimitedTelephone:86-20-29848075
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NINGBO VITAX BIOTECH CO., LTD.Telephone:+86-0574-28855236/28805910
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SNC International Co., LimitedTelephone:+86-22-28221962;28221963;88269480
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AWELL INGREDIENTS CO.,LTD.Telephone:+86-551-63875110