Sucker rod is one of our main products with the essence of advanced technology from home and abroad. Different categories are organized and manufactured in the accordance with SY/T5029, SY/T6272 and API SPEC 11B, including sucker rods of Grade D, Grade HL and HY, ultra-high strength and polished of ultra-high strength and special sucker rod according to user’s requirements.
In the manufacturing process, the advanced German direct reading spectrometer is used for material analysis; the magnetic leakage detector is used for flaw detection on the production line one by one; the far-infrared thermometer is used to monitor the forging heating temperature during forging; the thermal insulation or air cooling device is implemented according to the requirements of rod body material to control the cooling rate after forging; the fluorescent magnetic particle detector is used to inspect the forged part of the sucker rod after grinding; the forged rod body is tempered to eliminate the stress in the heating zone and the strength is checked by the hot stretch straightening; the rod body is reinforced by overall surface shot blasting to improve the fatigue strength of the rod before threading; the CNC hex lathe is used for machining of the rod head to realize the PLC industrial control automation; the processing accuracy is rechecked one by one after threading with a complete quality assurance system.
Sub-surface sucker rod pump is one of main equipment in oil production. The pumps are made through advanced surface nickel and phosphate plating, carbonitriding and carbonnitroboriding featured in corrosion resistance, wear resistance, reliability, durability, and high efficiency.
The main products:tubular pump, rod pump, multi-functional pump, inclined well pump, sand preventing pump, feedback pump, with Φ 32 - Φ 102mm and strokes of 1.8-8m.
| 无套内谢少妇毛片A片软件美国 | 亚洲第一精品在线播放视频 | 日韩欧美一级特黄大片视频 | 国产农村妇女乱婬A片 | 人人妻人人澡人人dvd | 精品无人区无码乱码毛片国产 | 免费国产传媒av在线观看 | 不卡无码在线视频 | 丰满少妇后入动态 | 蜜臀av性久久久久蜜臀aⅴ流畅 | 中文字幕无码人妻少妇精东 | 国产高清一级毛片在线不卡 | 色婷婷综合久色aⅴ高清电视 | 99国产精品人妻噜啊噜 | 午夜精品久久久久久不卡AV | 少妇把腿扒开让我添69式电影 | 精品动漫3D一区二区三区 | 亚洲图片欧美色图熟妇一区二区三区 | 日日噜噜噜夜夜爽爽狠狠视频97 | 人人妻人人澡人人爽精品 | WWW.17C嫩嫩草色视频蜜桃 | 3D动漫啪啪精品一区二区中文字幕 | 少妇自慰免费看无码专区 | 免费的色情网站入口在线看网页版 | 国产精品人妻波多野结衣 | 国产精品扒开腿做爽爽爽A片小 | 擼擼色在线看观看免费图片 | 四虎8848在线精品观看 | 国产成人a人亚洲精v品无码 | 稀缺资源毛片免费一区二区三区 | 97无码欧美熟妇人妻蜜桃天美 | 精品国产精品三级精品AV网址 | 午夜福利视频色视频在线 | 99热这里只有精品9 午夜剧场 成人 av | 精品爽爽久久久久久蜜臀黑人 | 国产人妻精品区一区二区 | 久久久91人妻无码精品蜜桃ID | 五十老熟妇乱子伦免费章节 | 8x国产AV三区久久久 | 国产性猛交XXXX免费看久久 |