HDPE liner for waterproof, High density polyethylene resin as raw material production. (geoembrane of density 0.94g/cm3 or above)full name "high density polyethylene film", with great cracking resistance, low temperature resistance, aging resistance, corr
The coaxial red laser is a high power, high-efficientAlGaInP semiconductor laser, which provides a stable, single transverse mode oscillation with emission wavelength of 635nm or 650nm.