Tianjin Sincere Import & Export Co., Ltd. (China) is manufacture all kinds of steel pipe. one of the excellent steel pipe manufacturers in China.We are a professional steel pipe manufacturer. Now our products include: round steel pipe, square steel pipe, rectangular steel pipe, oval steel pipe, window section steel pipe (LTZ pipe) and so on. With a stable quality and reliable service, over 85% of our products are exported overseas, such as Africa, Middle East, Middle and South America and so on....
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