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After the boot
(1) before pumping concrete, pump water 60 to 90kg, and then pump mortar 0.5m3. The mix ratio of mortar is determined by the length of pumping pipe. When the length of pipe is less than 150 m, the ratio of cement to sand is 1:2. When the length of pipe is more than 150 m, the ratio of cement to sand is 1:1. When the real mortar is near the end of pumping, concrete can be pumped.
(2) When the piston stroke of the concrete pump is adjustable, the long stroke is adopted f...

Hainan Airlines to link Chongqing in order to USA Chinese provider Hainan Airlines is seeking legal rights to further expand its long-haul system into the United States of America (USA) with an software to authorities for permission in order to introduce flights to Los Angeles plus New York from Jiangbei International Airport within Chongqing. The carrier plans to provide two or three...

China Sichuan Airlines pilot 'half sucked out of plane' survives Captain Liu Chuanjian said the Airbus A319 had been cruising mid-air when a deafening sound flooded the cockpit. "There was no warning," he told the Chengdu Economic Daily....

Ningbo Kexun Plastic Co., Ltd. specializes in the production of
China Foam Pump(KEXON). The main
purpose of foam pumps is for hand soaps, shower gels, foam pumps, shampoos,
facial cleansers, and foam pump heads on shaving. The main function is to save
money. The amount of liquid is lightly pressed, the foam comes out, and the foam
is full, delicate, uniform, clean...