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DHport offers 5273 cylindrical glass tube products. About 33% of these are Home & Garden, 29% are Business & Industrial, and 38% are other cylindrical glass tube supplies. A wide variety of cylindrical glass tube options are available to you. You may purchase samples before making big procurement. There are 610 cylindrical glass tube suppliers, mainly located in China. The top supplying provinces are Guangdong, Shanxi and Zhejiang, which supply 29%, 26% and 18% of cylindrical glass tube respectively.