• Hangzhou Rising Biotechnology Co., Ltd.
• +86-571-86921369 86920109 +86-013758276790
• China

• Hangzhou Ritade Tech Co.,Ltd.
• +86-312-7019178, 7019183
• China

• Hangzhou Ritan Chemical Co., Ltd.
• +86-13867159397 +86-571-82193509
• China

• HANGZHOU RIWA CHEMICAL CO.,LTD.
• 86-571-22851155 22851166 22851232-1238
• China

• HANGZHOU RONGDA PHARM AND CHEM CO.,LTD
• 88088387
• China

• Hangzhou Royall Import & Export Co., Ltd.
• +86-571-85829052
• China

• Hangzhou Ruihong Chemical Co., Ltd.(Hangzhou enhong Chemical Co.,Ltd)
• +86-571-82161874
• China

• Hangzhou Ruijiang Performance Material Science Co.,Ltd
• +86 571 28828106 +86 571 28055280
• China

• Hangzhou Ruikai Investment Co., Ltd
• +86-571-56665798
• China

• HANGZHOU RUILIPU TRADE CO.,LTD.
• 86-571-87245007 86815990
• China

• Hangzhou Sage Chemical Co., Ltd.
• +86-571-86818502
• China

• Hangzhou Sailab Bio Co.,Ltd.
• China

• Hangzhou Sairong Pharm Co.,Ltd.
• China

• HANGZHOU SANHE CHEMICAL CO., LTD.
• +86-571-28313908
• China

• Hangzhou Sanhe Food Co., Ltd.
• 0086-571-86072978,86064418
• China

• Hangzhou Sannai Environmental Technology Co., Ltd.
• 86-571-877075 64742169 64742501
• China

• Hangzhou Sanxi Chemical Co., Ltd.
• +86-571-87921756
• China

• Hangzhou Sanxuan Chemical Co., Ltd.
• +86-571-88028962 / 85130557
• China

• Hangzhou Sanye New Material Co., Ltd.
• +86-571-88013686,88015092
• China

• Hangzhou Science Development Co.,LTD.
• +86-571-86920987
• China