国产精品久久国产三级国,无码丰满熟妇juliaann与黑人,亚洲精品v天堂中文字幕,挺进邻居丰满少妇的身体

? ?
MCF Gas Roller-hearth Heat Treatment Furnace
FontSize:【L??M S
Profile:

Function: annealing treatment for coil, tubes or rods
Types of steel: austenitic stainless steel, martensite stainless steel, welding steel, low alloy steel, cold heading steel, free-cutting steel, structural alloy steel
Maximum production capacity: annual output of 40,000tons
Operation velocity: 0.5 ~ 5m/min
Heating method: gas-fired radiant tube heating; (regenerative combustion technology can be used)
Annealing temperature: 700 ~ 900℃
Furnace temperature d