久久久久国产精品aⅴ天堂,成人性生交A片免费直播APP ,男女扒开双腿猛进入爽爽免费,日本JAPANESE少妇高清

Hongrui Boya (Tianjin) Trading Co., Ltd. Was established in 2002, owning a factory- Hengshui Shuanglin Rubber Products CO.,LTD. Three companies for home market. And Hongrui Boya company for International trading.

150 acres, over 80 workers, 10 people's technical team, Five workshops, 50sets vulcanizing machines, a complete lab.
Business covers construction waterproofing, Road & bridge bearings, expansion joints.
Main products are Hydrophilic bentonite waterstop, swellable waterstop, rubber waterstop; Bridge bearings, elastomeric bearing pad, neoprene bearing pad, rubber bearing pad, bridge expansion joints, construction joint sealant, rubber pipe plugs, and so on.

 Our products are by the Ministry of chemical industry, rubber sundry goods testing center of identification, the company has always been to "first-class products, first-class service, first-class quality, first-class reputation" for the purpose of serving the customer, sincerely hope to get the support and cooperation of friends from all walks of life, welcome friends to visit us!