亚洲欧美日韩综合久久,国产成人精品日本亚洲77上位,香蕉av777xxx色综合一区,女人被做到高潮免费视频

About HILONG

HomeAbout HilongHilong Industry

GO Back

Shanghai BoTeng Welding Consumables Co.,Ltd.

Shanghai Boteng Welding Conaumables Co., Ltd, located in Baoshan Industrial Zone, Shanghai, is a high-tech enterprise specializing in the research and development, production, sales and related technical services of hardbanding wires specifically for oil pipes such as drill strings. It has strong research and development capabilities of welding materials, advanced production and testing equipment, and perfect quality management system.The company has passed ISO9001 quality management system,ISO14001 environment management system and ISO45001 occupational health and safety management system certification. Furthermore, BoTn series hardbanding products have also passed NS-1 certification.  
The pioneering application  of the "balanced wear resistance and friction reduction design" philosophy has driven the research and development of flux-cored welding wires for drill pipe wear bands. After more than two decades of R&D, we have introduced the BoTn1000, BoTn3000, and BoTn5000 series—high-performance, wear-resistant, and friction-reducing flux-cored welding wires for drill pipe wear bands. These products are primarily used for drill pipes, heavy-weight drill pipes, drill collars, stabilizers, shock absorbers, sucker rod couplings, and sucker rods in oil drilling equipment. Additionally, they have broad applications in other industries, including mining, chemicals, and power generation.
The BoTn series have undergone rigorous evaluation  by several authoritative third-party institutions, both domestically and internationally, including Mohr Engineering Division (USA), Bodycote Materials Inc. (USA), Howard & Associates International Inc. (USA), and Xi’an Maurer Petroleum Engineering Laboratory (China). The results of these tests have confirmed the exceptional performance of the products.
Moreover, the BoTn series hardbanding wires have been recognized as a Shanghai High-Tech Achievement Transformation Project, and have received non-repayable grants from the Ministry of Science and Technology, the Ministry of Finance, and the Science and Technology Commission of Shanghai Municipality (STCSM),  which actively support and promote their wider adoption.

contact details
Add:No. 1825 Luodong Road, Baoshan Industrial Park, Shanghai
Tel:021-33851219
Fax:021-33851268

伊伊人成亚洲综合人网7777| 国产av无码专区亚洲av果冻传媒| 国产精品福利自产拍在线观看 | 亚洲区小说区图片区qvod| 亚洲国产精品无码专区成人| 成人午夜爽爽爽免费视频| 亚洲精品一区二区三区在线| 无码精品a∨在线观看十八禁软件| 久久国产精品无码一区二区三区 | 老子影院无码午夜伦不卡| 99热这里有精品| 日韩免费无码一区二区视频| 国产欧美va欧美va香蕉在| 男男19禁啪啪无遮挡免费| 97人妻人人做人碰人人爽| 小荡货奶真大水真多紧视频| 欧美三级在线播放| 国产漂亮白嫩美女在线观看| 香蕉av777xxx色综合一区| 午夜无码性爽快影院6080| 久久久久久免费毛片精品| 少妇高潮惨叫久久久久久| 无码亲近乱子伦免费视频在线观看| 欧美日本免费一区二区三区| 色与欲影视天天看综合网| 精品久久久久久无码人妻热| 国语精品一区二区三区| 国产精品人妻久久ai换脸| 亚洲欧美日本中文字不卡| 中文字幕无码家庭乱欲| 97色成人综合网站| 兔费看少妇性l交大片免费| 日本不卡一区| 久久国产成人免费网站| 亚洲精品美女久久久久99| 最新亚洲人成网站在线影院| 国模大尺度啪啪| 国产激情电影综合在线看| 帮老师解开蕾丝奶罩吸乳视频| 黄频视频大全免费的国产| 免费观看又污又黄的网站|