球墨铸铁管在高强度低合金球墨铸铁方面，除了对铜、钼研究较多外，还对镍、铌等进行了研究。在利用天然钒钛生铁制作钒钛合金球墨铸铁方面，国内一些单位进行了大量、系统的工作。中锰球墨铸铁虽然在性能上不够稳定，但多年来的系统研究与生产应用，取得了显著的经济效益。在耐热球墨铸铁方面，除了中硅球墨铸铁以外，系统研究了Si+Al总量对稀土镁球墨铸铁抗生长能力的影响。我国研制的RQTAL5Si5耐热铸铁用作耐热炉条的使用寿命是灰铸铁的3倍，是普通耐热铸铁的2倍，并与日本Cr25Ni13Si2耐热钢的使用寿命相当。 球墨铸铁方面也取得了进展，它在石油开采机械、化工设备、工业用炉器件上均取得了成功的应用。

球墨铸铁管的执行标准—GB/T 13295-2008 水及燃气管道用球墨铸铁管、管件和附件，GB/T 17457-1998 球墨铸铁管水泥砂浆离心法衬层一般要求，GB/T 17458-1998 球墨铸铁管水泥砂浆离心法衬层新拌砂浆的成分检验，GB/T 17459-1998 球墨铸铁管沥青涂层，GB/T 17456 球墨铸铁管外表喷锌，GB/T 17219-1998 生活饮用水输配水设备及防护材料的安全性评价标准。

Shandong Xiangming Metal Materials Co., Ltd. is specialized in producing and selling ductile iron pipe, ductile iron pipe fittings, national standard ductile iron pipe, K9 ductile iron pipe, C25 ductile iron pipe, C30 ductile iron pipe, C40 ductile iron pipe and flexible cast iron drain pipe. Our company covers an area of more than 100 acres, with a total investment of 200 million yuan. The company is adjacent to the Ji-Liao Expressway in the north and the Beijing-Kowloon Railway in the west. It enjoys superior geographical conditions and convenient transportation. Shandong Xiangming Metal Materials Co., Ltd. has strong strength and currently employs more than 500 people, of which more than 50 are senior engineers. The company has passed the BG/T28001-2001 occupational health and safety management system certification to ensure the occupational health and production safety of employees on the job. The company has also passed ISO9001:2008 quality management system certification and ISO14001:2004 environmental management system certification, and strictly enforces management standards to ensure the quality of products. Shandong Xiangming Metal Materials Co., Ltd. mainly produces DN80-DN1200 water supply K9 national standard ductile iron pipe and fittings, mainly used for municipal water supply, oil pipelines, consumption water supply, etc., to meet the needs of customers in various industries. The matching pipe fittings are short-sleeve, double-sleeve, short-sleeve, double-bearing elbow, single-disc T-tube, three-contracted T-tube, double-contracting, double-disc, 90° double Plate elbow, 45° double disc elbow, full T-tube, socket T-tube, double-contained T-tube, full cross tube, full cross tube, 90° socket elbow, 22.54° socket elbow, three Chengyi inserts a cross tube, inserts a double-disc cross, and accepts a tapered tube. At the same time, the company also produces DN50-DN300 flexible cast iron drain pipe and W-type cast iron drain pipe fittings and B-type cast iron drain pipe fittings. Strictly follow the requirements of GB12772-2008 "Difficult interface cast iron pipe, fittings and accessories for drainage", adopt international advanced centrifugal casting production process, the product has dense metal structure, high internal and external smoothness, thin and uniform wall, corrosion resistance, convenient installation and transportation. Advantages, especially in earthquake resistance, fire prevention, noise-free, recycling and other aspects, have a unique advantage, widely used in high-rise building drainage, ventilation, and in the national key projects, quality engineering and earthquake-resistant fire and other high-demand buildings It is mandatory to use. The main accessories are: Y/TY/T tee, 45 degree, 90 degree socket elbow, return water bend, floor drain, cleaning port, inspection port, TY Sitong and other accessories. The company adheres to the enterprise spirit of "being a good person in advance", and carries forward the business philosophy of "being honest, doing things, and developing for a long time", creating a civilized and credible enterprise that makes customers satisfied, let customers rest assured, and trusts customers! Our wish is to give you: the most favorable price, the most reliable quality, the fastest delivery, the most satisfactory service! ! ! And solemnly promise to the new and old customers throughout the country: 1. If you find that the same quality pipe and board in China are higher than the sales price of our company during the period of supply with you, our company will return it at twice the supply price. 2. During the delivery period with you, you have new models and specifications changes, our company exchange. 3. Send the wrong goods or delay the delivery, my company package compensation.