Zhang Pengfei

Concrete sloping roof continuous casting forming method

Lining wall concrete placement top-down method based on underground diaphragm wall

Construction method of annular heating furnace hearth working layer provided with expansion gaps

Triangular-strip-groove-based annular heating furnace bottom working layer construction method

Lining wall concrete pouring inversing method based on UEA micro-expanding agent

Protection cover board for sand pipe-free dewatering well

Device for controlling concentricity of roller hole brick of solid melting furnace

Skew-based abnormal-load all-round scaffold building method

Quick arc lofting method based on non-circle-center position

Cleaning device special for corroded steel pipe fastener