Wholesale manhole atmospheric pressure manhole price 
 Quick opening manhole structure manhole role 0317-5305131 mobile phone: 13393272821 
 : 280 391 881 specializing in the production of a variety of standard specifications manhole. 
 (HG21514-2005) standard manhole 
 (HG21595) at atmospheric pressure stainless steel manhole, (HG21600) oval-quick opening stainless steel manhole 
 Stainless steel rotary stainless steel cover manhole, manhole cover, stainless steel manhole 
 Oval manhole, round hole, quick opening manhole, quick open hand hole, insulation hole round insulation manhole, rectangular thermal manhole, rectangular manhole, pressure manhole, atmospheric holes, vertical hanging manhole cover, the level of ceiling cover manholes, ash hole, hand hole, sewage hole. Another circular insulating hole a variety of standard specifications, oval Kong sale, stainless steel manhole cover material 304,316,316 L