Hebei Five Star Electric Equipment Co., Ltd.: municipal wells fence, telecommunications wells fence, electric fence wells, water companies manhole safety net, safety net drain manhole, sewage manhole protection network, cable manhole safety net, safety net Yinjing gas, heat manhole safety net. Manhole protective net product parameters:? Manhole safety net diameter 600 mm -800 mm (can be customized) load of not less than 300 kg or more. ? Manhole mesh fence, side ropes are made from high-strength polyethylene and other materials resistant to moisture corrosion. ? Manhole fence with high-strength wire, bulk yarn, polyester, polyvinyl alcohol, and other materials as raw material. ? Manhole protective net of all net rope from not less than three shares into a single rope. ? Manhole protection online all the joints are firmly fixed. ? Manhole safety net shape: Round square mesh side length should not exceed 10cm manhole protective net net rope breaking strength ≥ 1600N manhole protective net impact of ≥ 500 joules of impact, net rope is not broken??. Manhole fence stainless steel expansion bolts product requirements; ★ Material ★ 201 or 304 stainless steel screw diameter of 8 mm, length 110 mm