2021国产精品一二区_亚洲欧美日韩综合第一页_99re6在线视频播放免费_十八禁无码精品A∨在线观看动漫_日韩一记AV毛片_中日韩精品理论无码电影_日本午夜视频福利_老师强奷女同学系列H文_国产成人亚洲精品无码H_嫩喷小白浆高潮潮喷视频在线观看

ZMY Copper Inlaid Cast Iron Round Gate produced and sold by Baigang valve group, Also known as cast iron round gate cast iron round gate, round gate, Xu Hui Industry and Trade is actively absorbing advanced structures and processes at home and abroad, and to improve the water supply and drainage and sewage treatment of the ideal equipment. Round gate manufacturing and processing in line with the Ministry of Construction CJ / T300-1992 standards and the United States AWWA standards. Widely used in municipal, petroleum, chemical, power plants, metallurgy, coal, light industry, food, pharmaceuticals, water conservancy, sewage treatment and other water supply and drainage projects. The nominal pressure of 0.1MPa below the intersection of the intersection of the mouth of the pit wells, sediment ponds, sewage channels, the original wells wells, clear water and other places, to cut off, clear the water flow or regulate the water level. And with manual, electric, hydraulic hoist combination supporting the use of field operations or remote control to achieve centralized control, but also with the computer linkage control.

Cast iron copper gate according to the shape and structure is divided into cast iron cupola copper gate and cast iron copper square gate, cast iron copper gate by the door frame, gate, rail, seal, adjustable sealing mechanism and other components. The utility model has the advantages of simple structure, good sealing performance, strong abrasion resistance, simple operation, convenient installation, long service life, complete specifications and wide applicability. The utility model can be equipped with manual hoist or flashlight hoist according to customer's needs.