... reducer, and seal of valve;2.A high-performance heat sensitive adhesive effectively bonds to steel substrates enamel to form ... the steel pipes, epoxy and PE coating, and good sealing;4.Excellent resistance against chemical corrosion,good water immersion, ... pipelines.Jining Huayi Industry & Trade Co. Ltd. mainly produce heat shrinkable products for pipelines,we provide excellent quality,the quality could ...